Speedo Womens Plus Size Solid AquaNite Swimsuit - Anthracite

Speedo Womens Plus Size Solid AquaNite Swimsuit - Anthracite

Brand: Speedo

SKU: 8-0040200001-44

Availability: In stock

£43.43 GBP; £43.43 GBP
Unit price: per

Size: 44 40 42 44 46 48 50

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Speedo Womens Plus Size Solid AquaNite Swimsuit - Anthracite

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Speedo · Swimsuits SPEEDO WOMENS PLUS SIZE SOLID AQUANITE SWIMSUIT Anthracite Flattering shape and active support in one sleek swimsuit. Our flattering AquaNite swimsuit shapes and supports during active swims. Stretchy SHAPE COMPREX fabric provides all-over body-shaping and includes chlorine resistance for lasting durability. Enhanced with LYCRA® XTRA LIFE™ for extra stretch, it features gentle ruching and a soft V-neckline to flatter your shape. Offering mid coverage, AquaNite has a U-back and adjustable straps for a customised fit. Shape, support and style, stroke after stroke.

All-Over Body ShapingSHAPE COMPREX FabricLYCRA® XTRA LIFE™Chlorine ResistantAdjustable StrapsMid Coverage

3 Key Features

SHAPE COMPREX Construction

The SHAPE COMPREX fabric delivers all-over body-shaping with every length you swim. Its stretchy composition moves with you rather than against you, so coverage and silhouette stay consistent throughout your session. Chlorine resistance is built into the fabric itself, keeping the suit’s shape and colour intact over time.

LYCRA® XTRA LIFE™ Durability

LYCRA® XTRA LIFE™ is woven through the 69% Nylon, 31% LYCRA® XTRA LIFE™ construction to deliver exceptional stretch and recovery. The fibre is engineered to withstand repeated exposure to pool chemicals, meaning the suit retains its fit far longer than standard swimwear. You get consistent compression and support session after session.

Flattering, Customisable Fit

Gentle ruching and a soft V-neckline are designed specifically to flatter your shape rather than simply cover it. The U-back allows a full range of arm movement during active swimming, while adjustable straps let you dial in the exact fit you need. A gusset lining completes the suit for secure, confident wear in the pool.

Full Feature Breakdown

All-Over Body ShapingSHAPE COMPREX fabric smooths and supports the whole silhouette throughout your swim.
Chlorine ResistantBuilt-in chlorine resistance protects fabric integrity and colour through heavy pool use.
LYCRA® XTRA LIFE™Provides superior stretch, recovery and long-term durability compared to standard elastane.
Gentle RuchingStrategically placed ruching flatters the figure without compromising freedom of movement.
Soft V-NecklineA V-neckline adds a flattering front detail suited to a range of body shapes.
U-BackThe U-back cut allows unrestricted arm movement for active lap swimming.
Adjustable StrapsFully adjustable straps let you customise the fit and shoulder support to suit you.
Gusset LinedAn integrated gusset lining ensures secure, comfortable coverage in the water.

Product Specifications at a Glance

Fabric: 69% Nylon, 31% LYCRA® XTRA LIFE™Fabric Technology: SHAPE COMPREX with LYCRA® XTRA LIFE™Chlorine Resistance: YesCoverage: MidBack Style: U-BackStraps: AdjustableLining: Gusset linedBest For: Plus-size swimmers seeking active-length comfort, body-shaping support and lasting chlorine resistance in the pool.

Not sure on sizing? See our Speedo Plus Size Womens Size Guide or ask our swimwear experts for advice.

Speedo Plus Size Womens Size Guide

← Scroll to see all sizes →

Size	18/40	20/42	22/44	24/46	26/48	28/50
International Size Equivalents
UK Dress Size	18	20	22	24	26	28
D (Germany)	44	46	48	50	52	54
F (France)	46	48	50	52	54	56
I (Italy)	50	52	54	56	58	60
Lat Am	Talla 40	Talla 42	Talla 44	Talla 46	Talla 48	Talla 50
Aus	16	18	20	22	24	26
Body Measurements (cm)
Bust	111.5	111.5	120	124.5	129	134
Waist*	93	100	107	114.5	121	127.5
Hip	114	120.5	127	133.5	139.5	145.5
Body Measurements (inches)
Bust	44	44.5	47.25	49	50.75	52.75
Waist*	36.75	39.75	42	44.75	47.25	50.25
Hip	45	47.5	50	52.25	55	57.25

All measurements are body measurements, not garment measurements. For further guidance view our full size guide or ask our swimwear experts.

Frequently Asked Questions

QHow does the SHAPE COMPREX fabric differ from standard swimsuit material?

SHAPE COMPREX is a specialist fabric engineered specifically for all-over body-shaping. Unlike standard swimwear fabric, it combines compression and stretch to smooth and support the silhouette during active swimming, while also offering built-in chlorine resistance so the shaping effect lasts over time.

QHow do I find the right size in the AquaNite plus-size swimsuit?

Speedo’s plus-size sizing is based on specific body measurements rather than generic clothing sizes. Please refer to our Speedo Plus Size Womens Size Guide to find the best fit for your measurements before ordering.

QIs this swimsuit suitable for regular pool training?

Yes. The LYCRA® XTRA LIFE™ fibre and chlorine-resistant SHAPE COMPREX fabric are both designed to withstand frequent pool use. The adjustable straps and U-back also make it practical for active lap swimming rather than purely leisure wear.

QWill chlorine affect the ruching or shape over time?

The chlorine resistance built into the SHAPE COMPREX fabric helps protect both the structure and the aesthetic details, including the ruching. To get the longest life from the suit, rinse it thoroughly in cold fresh water after every swim. See our full product aftercare guide for full guidance.

Care Instructions

💧Rinse immediately after every use in cool, non-chlorinated water
🚫Do not leave the wet suit in a bag for extended periods
☀️Leave to dry naturally avoiding sunlight
🧼Hand wash only with a detergent suitable for delicate fabrics
🌬️Air dry by hanging away from direct heat sources
🚫Do not machine wash, tumble dry, wring, iron or dry-clean

View our full swimwear product aftercare guide to ensure you look after your kit properly.

Why Buy from Allens Swimwear?

A Family Business Built on Swimming Since 1976

Allens Swimwear is a family-run business founded in 1976 by Dennis Allen and his daughter Linda Beal. It started from a genuine need. “With 2 swimmers in the family it was often difficult to find the right kit, so dad and I took the plunge and started selling to local swimmers at our local pool in Kingsbury out of a suitcase and we’ve never looked back.” Today, Linda, her husband Richard, and three of their children Danny, Will and Jenna still run the business together. The suitcase may be long gone, but the founding principle of helping swimmers get the right kit remains exactly the same.

🏆50 Years of Expertise50 years in the swimming world. Our swimwear experts are on hand by phone or in store to give you honest, expert advice on sizing, fit and product choice.

🏪Visit Us In StoreCome and see us at our Midlands store in Dordon, Tamworth. Mon to Fri 8am to 4pm, Sat 8am to 3pm, Sun 10am to 2pm. Please check our Visit Us page to confirm opening hours before making a special trip.

📦Free UK Delivery and No Hassle ReturnsFree delivery on orders over £40. If something is not right, we make returns straightforward and stress-free.

🪡Race Suit Repair ServiceSnagged or damaged your suit? Our professional race suit repair service can save your investment and get you back racing.

🏊Swimming Club PartnershipsWe work directly with swimming clubs across the UK. Find out about our Club Partnership Programme for exclusive club discounts and benefits.

💙10% Blue Light DiscountNHS, Emergency Services, Armed Forces and teachers all receive 10% off every order, in store or online, every time. No codes, no hoops.

Helpful Links from Allens Swimwear

🏪About Allens Swimwear 📏Speedo Plus Size Womens Size Guide 📋Full Product Aftercare Guide 📦Delivery Information ↩️Returns Policy 📍Visit Us In Store ✉️Get In Touch 💙Blue Light Card Discount 🪡Race Suit Repair Service 🏊Swimming Club Partnership Programme

UK Delivery Options

🚚 Free UK Delivery

Free delivery on all orders over £40

For orders below £40, delivery charges will be displayed at checkout.

The total order value, including any deals or discounts (such as a discount code), must be over £40.

📮 Royal Mail

Tracked 24: Usually 1–2 working days.
Tracked 48: Usually 2–3 working days.
Guaranteed Next Day Delivery: Order before 3pm Monday–Friday or 8am Saturday. Orders placed after 8am Saturday will be delivered Tuesday.

📦 UPS

Standard: Usually 1–2 working days.

🚀 DHL Courier

Standard: Usually 1–2 working days.
Economical: Usually 3–4 working days.

🏪 In Store Collection

Free in store collection is available. Simply choose this option at checkout and pick up your order at our store.

🕐 Delivery Times

In stock items are usually dispatched the same day.
Delivery estimates are affected by seasonal demand and weather conditions.
Unless stated otherwise, please allow up to 30 days for delivery.

EU Delivery Options

✈️ FedEx

Priority: 1–2 working days across the EU.
Economy: 3–5 working days for EU destinations.
Standard: 1–4 working days within the EU.

International Delivery Options

🌍 International Shipping

Customs charges may apply based on your country's regulations.
Cross border shipments may be inspected by customs authorities.

📮 Royal Mail

International Tracked: Typically 10–15 working days for delivery.

🚀 DHL Courier

DHL Express: Delivery within 2–3 working days internationally.

Important Information

Delivery charges and options will be displayed at checkout, tailored to your location and preferences.
Please note that delivery times may vary due to seasonal demand or unforeseen circumstances.
For international deliveries, customs duties and taxes may apply based on your country's regulations.

FAQs

1. What delivery options do you offer?

We offer several delivery options, including Standard Delivery, Express Delivery, and International Shipping.

2. How long will it take for my order to arrive?

Delivery times depend on the option you choose at checkout. Standard Delivery typically takes 2–3 days, while Express Delivery is usually delivered within 1–2 days. International delivery times may vary by location.

3. How much does delivery cost?

Delivery costs vary based on the shipping method and destination. Standard delivery starts at £4.99, and express delivery starts at £14.99. International shipping rates are calculated at checkout.

4. Do you offer free delivery?

Yes, we offer free delivery on orders over £40. Terms and conditions apply.

5. Can I track my order?

Yes, once your order is dispatched, you'll receive a tracking number via email to monitor its progress.

6. Do you deliver internationally?

Yes, we deliver to many countries worldwide. Delivery times and costs for international orders are shown at checkout.

7. What should I do if my order hasn't arrived?

If your order hasn't arrived within the estimated timeframe, please contact us with your order number, and we'll assist you.

8. What happens if I'm not home to receive my delivery?

If you're not available, the courier will typically leave a card with instructions on how to rearrange delivery or collect your parcel.

9. Can I change my delivery address after placing an order?

We can make changes to your delivery address if your order hasn't been dispatched. Please contact us as soon as possible.

10. What if my order arrives damaged or incomplete?

If your order arrives damaged or is incomplete, please contact our customer service team as soon as possible with photos and your order number, and we'll resolve the issue promptly.

11. Do you deliver to PO Boxes or BFPO addresses?

Currently, we don't deliver to PO Boxes and BFPO addresses. Please check specific delivery options at checkout.

12. Can I choose a specific delivery date?

For express or special deliveries, you may be able to select a preferred delivery date at checkout.

Returns Policy

We offer a free returns service. We advise that customers keep either proof of posting or a receipt as we cannot be held accountable for items lost being returned to us.

Please note that this returns policy does not cover items such as special order swimwear, customised products and products ordered specifically at the request of a customer. Products such as these cannot be returned (unless faulty).

Free UK Returns

If you are unhappy with your purchase for any reason, then we will gladly refund you within 28 days of purchase. Simply click on the link below to begin the returns policy:

ALLENS OF KINGSBURY RETURNS

EU & International Returns

Returns outside of the UK are at the buyer's cost. Please return to us at the address below.

ALLENS OF KINGSBURY 80 Barden View Road
Dordon
Staffordshire
B78 1QB
England

Please ensure that you have completed a CN22 Customs declarations form and that this has been clearly marked as being Returned Goods. Please mark the return parcel on the outside clearly as returned goods. Failure to do this could result in Customs charges being applied to the parcel on its return. I regret we cannot accept parcels with customs duties and charges payable — these will be returned to sender.

Non-Faulty Goods

Please return items with the original packaging if possible and to keep hygiene seals on suits, please also include a copy of the invoice received clearly stating on this that you would like a refund for the return.

Please note that we will not accept non-faulty items back that have been worn or without their relevant packaging, labels or stickers.

If you would like to exchange an item for an alternative size, style or item please follow the link to us along with a copy of your invoice, please note on the invoice what item is required as an alternative.

Faulty Goods

In the case of faulty goods, please contact us and provide details of the nature of complaint along with photos and the date of purchase and the care given to product.

In all cases of complaint we will endeavour to substitute faulty goods with an identical replacement, or substitute the goods with ones of similar value. This does not affect your statutory rights, and you may of course choose to have a complete refund if you are not 100% happy.

How to Return an Item

Fill out the Returns Form included in your package.
Securely pack your items, ideally in the original packaging.
For UK customers, use this link.
For international customers, ensure shipping is prepaid and use an insured service.

Need Help?

If you have any questions about delivery, please contact us.

This size guide covers Speedo Plus Size adult women's swimwear in sizes 18/40 to 28/50 (equivalent to UK dress sizes 18–28). All measurements are body measurements taken from your own body, not garment measurements. Always use your bust measurement as the primary guide. International size equivalents for Germany (D), France (F), Italy (I), Latin America (Lat Am), and Australia (Aus) are shown in the sizing table below.

Shop Speedo Women's Swimsuits →

Body Measurement Points

How to Measure

Take all measurements directly against your skin using a soft tape measure. All measurements are body measurements, not garment measurements.

A
BustMeasure around the fullest part of your chest, keeping the tape horizontal and snug but not tight.
B
WaistMeasure at the narrowest part of your natural waist.
C
HipMeasure around the fullest part of your hips and seat, keeping the tape horizontal.

*Waist is measured at the natural waist at narrowest point.

Sizing Table — Speedo Plus Size Adult Female Swimwear

Sizing	18/40	20/42	22/44	24/46	26/48	28/50
International Size Equivalents
UK Dress Size	18	20	22	24	26	28
D (Germany)	44	46	48	50	52	54
F (France)	46	48	50	52	54	56
I (Italy)	50	52	54	56	58	60
Lat Am	Talla 40	Talla 42	Talla 44	Talla 46	Talla 48	Talla 50
Aus	16	18	20	22	24	26
Body Measurements (cm)
Bust	111.5	111.5	120	124.5	129	134
Waist*	93	100	107	114.5	121	127.5
Hip	114	120.5	127	133.5	139.5	145.5
Body Measurements (inches)
Bust	44	44.5	47.25	49	50.75	52.75
Waist*	36.75	39.75	42	44.75	47.25	50.25
Hip	45	47.5	50	52.25	55	57.25

*Waist is natural waist at narrowest point. All measurements are body measurements, not garment measurements.

Fit Notes — Speedo Plus Size Women's Swimwear

Always use your bust measurement as the primary guide when selecting a Speedo Plus Size swimsuit.
Speedo swimsuits are designed to fit closely and securely — they will feel firmer than a regular fitted top. This is intentional and ensures the suit stays in place during swimming.
If your bust and hip measurements suggest different sizes, choose the size that fits your bust and check that the hip measurement falls within the size range.
Speedo swimsuits are made from chlorine-resistant fabrics that feel firm when new and ease slightly with wear — do not size up based on initial tightness.
The swimsuit should feel secure across the bust and back with no gaping, pulling, or riding up.
Rinse in cold fresh water immediately after every use. Do not tumble dry, iron, or dry-clean.
Unsure? Contact our team or call +44 1827 330600. Speak to a member of staff at Allens if you are unsure.

Frequently Asked Questions — Speedo Plus Size Women's Swimwear

Measure your bust, waist, and hip using a soft tape measure directly against your skin. Use your bust measurement as the primary guide and compare to the sizing table above. If your measurements fall across two sizes, choose the size that fits your bust. International size equivalents are shown in the table as a secondary reference — always prioritise body measurements.

Speedo Plus Size swimwear is specifically designed for UK dress sizes 18–28 (Speedo sizes 18/40 to 28/50), offering a fuller cut across the bust, waist, and hip. Standard Speedo numeric sizing (24–46) covers UK dress sizes 6–22. If you are between the two ranges, the size 18/40 and 20/42 options overlap with the upper end of the standard range — always use body measurements to decide.

If your measurements fall between two sizes, use your bust measurement to decide. Speedo swimsuits are designed to fit closely and will ease slightly with wear. Do not size up based on how the suit feels when you first try it on. Speak to a member of staff at Allens if you are unsure.

Yes — Speedo's chlorine-resistant fabrics feel firm when new and ease slightly with regular use. The suit will mould to your body shape over the first few wears. Do not size up based on how the suit feels when you first try it on — if it fits correctly across the bust and back with no gaping, it is the right size.

Speedo swimsuits are primarily designed for pool use. While the chlorine-resistant fabrics will withstand occasional use in open water or the sea, prolonged exposure to salt water can accelerate fabric degradation. Rinse the suit thoroughly in fresh water after every use. For dedicated open water or triathlon use, a wetsuit or open water-specific suit is recommended.

Rinse your Speedo swimsuit in cold fresh water immediately after every use to remove chlorine, salt, and sunscreen. Hand wash gently with a mild detergent if needed. Do not machine wash, tumble dry, iron, or dry-clean. Store flat and dry, away from direct sunlight. Avoid sitting on rough surfaces in your swimsuit as this can cause premature fabric wear.

Speedo swimsuit sizes do not directly correspond to standard clothing sizes. Always use body measurements to select the correct Speedo size. The international size equivalents in the table are shown as a secondary reference — always prioritise body measurements over clothing size equivalents.

Speedo Womens Plus Size Solid AquaNite Swimsuit - Anthracite

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