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Description
xA completely new internal taping construction delivers powerful support that lifts the legs and hips for optimal body positioning. This reduces drag and improves stability throughout every length. The result is a suit that works with your body, not against it.
The newly engineered FLEXMAX shoulder straps conform to the body with adaptive flexibility. They maximise comfort and freedom in every motion, so nothing interrupts your stroke cycle. Whether you’re warming up or racing flat out, the fit stays consistent.
Comfortable compression is delivered by horizontal carbon bands that lock down at critical stretch to provide moderate compression, stability and power when and where it’s needed. The carbon fibre technology is combined with Air’s signature ultralight feel for a suit that never feels heavy. Extended length from waist to knee adds coverage, better compression and superior hydrodynamics.
Not sure on sizing? See our Arena Powerskin Air3 Womens Size Guide or ask our swimwear experts for advice.
← Scroll to see all sizes →
| Size | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| International Size Equivalents | ||||||||||||
| UK | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
| USA | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
| France | 24 | 26 | 28 | 30 | 30 LT | 32 | 32 LT | 34 | 34 LT | 36 | 38 | 40 |
| Italy | 28 | 30 | 32 | 34 | 34 LT | 36 | 36 LT | 38 | 38 LT | 40 | 42 | 44 |
| Germany | 22 | 24 | 26 | 28 | 28 LT | 30 | 30 LT | 32 | 32 LT | 34 | 36 | 38 |
| Body Measurements (cm) | ||||||||||||
| A: Chest | 69–74 | 74–79 | 79–84 | 84–89 | 84–89 | 89–94 | 89–94 | 94–98 | 94–98 | 98–102 | 102–106 | 106–110 |
| B: Waist | 54–58 | 58–62 | 62–66 | 66–70 | 66–70 | 70–74 | 70–74 | 74–78 | 74–78 | 78–82 | 82–86 | 86–90 |
| C: Hip | 70–75 | 75–80 | 80–85 | 85–90 | 85–90 | 90–95 | 90–95 | 95–100 | 95–100 | 100–105 | 105–110 | 110–115 |
| D: Torso Loop | 116–123 | 125–133 | 136–143 | 143–148 | 149–154 | 154–159 | 160–165 | 165–170 | 171–176 | 171–178 | 176–183 | 181–188 |
| Body Measurements (inches) | ||||||||||||
| A: Chest | 27.2–29.1 | 29.1–31.1 | 31.1–33.1 | 33.1–35.0 | 33.1–35.0 | 35.0–37.0 | 35.0–37.0 | 37.0–38.6 | 37.0–38.6 | 38.6–40.2 | 40.2–41.7 | 41.7–43.3 |
| B: Waist | 21.3–22.8 | 22.8–24.4 | 24.4–26.0 | 26.0–27.6 | 26.0–27.6 | 27.6–29.1 | 27.6–29.1 | 29.1–30.7 | 29.1–30.7 | 30.7–32.3 | 32.3–33.9 | 33.9–35.4 |
| C: Hip | 27.6–29.5 | 29.5–31.5 | 31.5–33.5 | 33.5–35.4 | 33.5–35.4 | 35.4–37.4 | 35.4–37.4 | 37.4–39.4 | 37.4–39.4 | 39.4–41.3 | 41.3–43.3 | 43.3–45.3 |
| D: Torso Loop | 45.7–48.4 | 49.2–52.4 | 53.5–56.3 | 56.3–58.3 | 58.7–60.6 | 60.6–62.6 | 63.0–65.0 | 65.0–66.9 | 67.3–69.3 | 67.3–70.1 | 69.3–72.0 | 71.3–74.0 |
All measurements are body measurements, not garment measurements. For further guidance view our full size guide or ask our swimwear experts.
Arena race suits are designed to fit very close to the body and sizing can differ from training suits. We recommend consulting the size guide at Arena Powerskin Air3 Womens Size Guide before ordering, and taking note of your chest, waist and hip measurements. Long-torso sizes are also available for a near-custom fit.
Yes. The Arena Powerskin Air 3 is approved by World Aquatics and can be worn in sanctioned competition at all levels, from club galas to elite meets.
The suit delivers moderate compression through horizontal carbon bands that lock down at critical stretch points. This provides stability and targeted power without the extreme compression of heavier race suits, making it comfortable across longer race days.
Race suits require careful handling to maintain their performance properties. Please follow our full aftercare guidance at full product aftercare guide to get the most from your suit.
View our full swimwear product aftercare guide to ensure you look after your race suit properly.
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.
Shipping & Returns
xUK 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
📦 UPS
🚀 DHL Courier
🏪 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
EU Delivery Options
✈️ FedEx
International Delivery Options
🌍 International Shipping
📮 Royal Mail
🚀 DHL Courier
Important Information
FAQs
We offer several delivery options, including Standard Delivery, Express Delivery, and International Shipping.
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.
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.
Yes, we offer free delivery on orders over £40. Terms and conditions apply.
Yes, once your order is dispatched, you'll receive a tracking number via email to monitor its progress.
Yes, we deliver to many countries worldwide. Delivery times and costs for international orders are shown at checkout.
If your order hasn't arrived within the estimated timeframe, please contact us with your order number, and we'll assist you.
If you're not available, the courier will typically leave a card with instructions on how to rearrange delivery or collect your parcel.
We can make changes to your delivery address if your order hasn't been dispatched. Please contact us as soon as possible.
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.
Currently, we don't deliver to PO Boxes and BFPO addresses. Please check specific delivery options at checkout.
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
Returns outside of the UK are at the buyer's cost. Please return to us at the address below.
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
If you have any questions about delivery, please contact us.
Size chart
This size guide covers the Arena Powerskin Air 3 Women’s Racing Kneesuit. Born from the same iconic Carbon shell fabric (113g/sqm) that athletes have trusted for over a decade, the Air 3 evolves the legendary Air platform with multiple game-changing upgrades. Featuring the same ultra-lightweight second-skin feel and comfortable race-ready compression, the Air 3 is Arena’s most versatile elite racing suit.
Key upgrades over the Carbon Air² include a more hydrophobic upgraded lining, FlexMax shoulder straps for greater shoulder mobility and reduced pressure, leg-lifting hamstring seams for superior body positioning, extended leg coverage, and enhanced fit options including new long-torso sizes. All measurements are body measurements taken directly from your body. Use the Torso Loop (D) as the primary sizing guide.
Shop Arena Women’s Racing Kneesuits →
Take all measurements directly against your skin using a soft tape measure. Use the Torso Loop (D) as the primary sizing guide — this determines how the suit sits across the shoulders and through the body.
If measurements fall between sizes, speak to a member of staff at Allens who will be happy to advise on the best fit.
| Sizing | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| International Size Equivalents | ||||||||||||
| UK | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
| USA | 18 | 20 | 22 | 24 | 24 LT | 26 | 26 LT | 28 | 28 LT | 30 | 32 | 34 |
| France | 24 | 26 | 28 | 30 | 30 LT | 32 | 32 LT | 34 | 34 LT | 36 | 38 | 40 |
| Italy | 28 | 30 | 32 | 34 | 34 LT | 36 | 36 LT | 38 | 38 LT | 40 | 42 | 44 |
| Germany | 22 | 24 | 26 | 28 | 28 LT | 30 | 30 LT | 32 | 32 LT | 34 | 36 | 38 |
| Body Measurements (cm) | ||||||||||||
| A — Chest | 69–74 | 74–79 | 79–84 | 84–89 | 84–89 | 89–94 | 89–94 | 94–98 | 94–98 | 98–102 | 102–106 | 106–110 |
| B — Waist | 54–58 | 58–62 | 62–66 | 66–70 | 66–70 | 70–74 | 70–74 | 74–78 | 74–78 | 78–82 | 82–86 | 86–90 |
| C — Hip | 70–75 | 75–80 | 80–85 | 85–90 | 85–90 | 90–95 | 90–95 | 95–100 | 95–100 | 100–105 | 105–110 | 110–115 |
| D — Torso Loop | 116–123 | 125–133 | 136–143 | 143–148 | 149–154 | 154–159 | 160–165 | 165–170 | 171–176 | 171–178 | 176–183 | 181–188 |
| Body Measurements (inches) | ||||||||||||
| A — Chest | 27.2–29.1 | 29.1–31.1 | 31.1–33.1 | 33.1–35.0 | 33.1–35.0 | 35.0–37.0 | 35.0–37.0 | 37.0–38.6 | 37.0–38.6 | 38.6–40.2 | 40.2–41.7 | 41.7–43.3 |
| B — Waist | 21.3–22.8 | 22.8–24.4 | 24.4–26.0 | 26.0–27.6 | 26.0–27.6 | 27.6–29.1 | 27.6–29.1 | 29.1–30.7 | 29.1–30.7 | 30.7–32.3 | 32.3–33.9 | 33.9–35.4 |
| C — Hip | 27.6–29.5 | 29.5–31.5 | 31.5–33.5 | 33.5–35.4 | 33.5–35.4 | 35.4–37.4 | 35.4–37.4 | 37.4–39.4 | 37.4–39.4 | 39.4–41.3 | 41.3–43.3 | 43.3–45.3 |
| D — Torso Loop | 45.7–48.4 | 49.2–52.4 | 53.5–56.3 | 56.3–58.3 | 58.7–60.6 | 60.6–62.6 | 63.0–65.0 | 65.0–66.9 | 67.3–69.3 | 67.3–70.1 | 69.3–72.0 | 71.3–74.0 |
All measurements are body measurements, not garment measurements. Use the Torso Loop (D) as the primary sizing guide. LT (Long Torso) sizes are available for swimmers who need more torso length. Speak to a member of staff at Allens if you are unsure.
Measure your chest (A), waist (B), hip (C), and torso loop (D) using a soft tape measure directly against your skin. Use the Torso Loop as the primary guide and compare all measurements to the sizing table above. Speak to a member of staff at Allens if you are unsure.
The Torso Loop is measured by running a soft tape measure over one shoulder, down the front of the body, under the crotch, and back up to the same shoulder. This is the most important measurement for a racing kneesuit as it determines how the suit sits across the shoulders and through the body.
If your measurements fall between two sizes, speak to a member of staff at Allens who will be happy to advise on the best fit. The Air 3 features enhanced sizing options including long-torso fits — speak to our team to find the best option for your body shape.
The Air 3 should feel firm and compressive but wearable throughout a full competition day. It should be completely wrinkle-free when correctly fitted — any bunching or gathering indicates the suit is too large. The FlexMax shoulder straps should sit flat with no pulling, and leg hems should end above the knee.
The Powerskin Air 3 evolves the iconic Carbon Air² platform with several key upgrades: an upgraded lining with more hydrophobic properties, FlexMax shoulder straps for greater mobility and reduced pressure, leg-lifting hamstring seams for superior body positioning, extended leg coverage, and enhanced fit options including new long-torso sizes. The same trusted Carbon shell fabric and ultra-lightweight second-skin feel are retained.
Arena racing kneesuits are competition suits and are not designed for regular training use. Using a tech suit for training will degrade the fabric and reduce its lifespan significantly. Reserve it for races and competition warm-ups. Arena offer a wide range of training swimsuits for everyday pool use.
Rinse the suit in cold fresh water immediately after every use. Do not machine wash, tumble dry, iron, or dry-clean. Store flat and dry, away from direct sunlight. Avoid contact with sunscreen, oils, and petroleum-based products. Do not wring or twist the suit. Handle with care when putting on and taking off to protect the fabric.
Yes — the Arena Powerskin Air 3 meets FINA/World Aquatics specifications and is approved for use in all sanctioned competitive swimming events. Always check with your event organiser for any local rules regarding tech suits in competition. Speak to a member of staff at Allens if you need further guidance.
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