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Description
xMade for having fun in the water! The extremely durable, chlorine-proof and stylish Ondulation Swim Jammers for boys from the arena Performance line are ideal for both competitive and regular swimmers who swim frequently in the pool. The highly chlorine-resistant MaxLife Eco fabric with integrated UPF 50+ UV protection is extremely quick-drying and long-lasting. This eco-friendly version of arena's MaxLife fabric contains at least 50% recycled polyester from PET bottles. Plus the production process of the fabric was optimized to save energy, reduce CO2 emissions and minimize water usage. Finished with a comfortable front lining, the adjustable internal drawstring guarantees an excellent fit. Side length: 36 cm. The fabric's OEKO-TEX® STANDARD 100 certification means it has been tested for harmful substances and is harmless to human health and the environment.
Features:
Shipping & Returns
xFree 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.
Free in store collection is available. Simply choose this option at checkout and pick up your order at our store.
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.
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).
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.
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.
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.
If you have any questions about delivery, please contact us.
Size chart
This size guide covers Arena Boys Swimwear, sized by age range and body measurements. Arena boys' jammers and swimwear are designed for young swimmers from ages 6–7 through to 14–15, offering a secure, comfortable fit for both training and recreational swimming.
Arena sizes boys' swimwear by height, waist, and hip circumference. For the most accurate fit, always measure your child's body rather than relying on age alone — children develop at different rates and fit will vary. International and Australian sizes are shown as age ranges.
Shop Arena Boys Swimwear →
Take all measurements with a soft tape measure, directly against the skin or over light underwear. Measure in centimetres for the most accurate result.
| Sizing | |||||
| UK Size | 22 | 24 | 26 | 28 | 30 |
| International / AUS | 6–7 yrs | 8–9 yrs | 10–11 yrs | 12–13 yrs | 14–15 yrs |
| Body Measurements (cm) | |||||
| A — Height (cm) | 116 | 128 | 140 | 152 | 164 |
| B — Chest (cm) | 55 | 60 | 65 | 70 | 75 |
| C — Waist (cm) | 53 | 55 | 57 | 59 | 60 |
| D — Hips (cm) | 65 | 70 | 75 | 80 | 85 |
| Sizing | |||||
| UK Size | 22 | 24 | 26 | 28 | 30 |
| International / AUS | 6–7 yrs | 8–9 yrs | 10–11 yrs | 12–13 yrs | 14–15 yrs |
| Body Measurements (inches) | |||||
| A — Height (in) | 45.7 | 50.4 | 55.1 | 59.8 | 64.6 |
| B — Chest (in) | 21.7 | 23.6 | 25.6 | 27.6 | 29.5 |
| C — Waist (in) | 20.9 | 21.7 | 22.4 | 23.2 | 23.6 |
| D — Hips (in) | 25.6 | 27.6 | 29.5 | 31.5 | 33.5 |
International and AUS sizes are shown as age ranges. Always measure rather than relying on age alone.
Measure your child's height, waist, and hips in centimetres and match these to the size table above. Always use body measurements rather than age, as Arena sizing is based on body dimensions rather than a fixed age range. Speak to a member of staff at Allens if you are unsure.
Arena boys swimwear in this range covers sizes from 6–7 years (UK 22) through to 14–15 years (UK 30), corresponding to heights of approximately 116cm to 164cm. UK sizes are shown in years. If your child is outside this range, please contact our team for guidance on alternative Arena ranges.
Use a soft tape measure taken directly against the skin or over light underwear. Measure height standing straight against a wall, waist around the narrowest point just above the belly button, and hips around the fullest part of the seat. Record all measurements in centimetres and use the size table above to find the best fit.
Arena is a leading competitive swimwear brand and their boys' jammers and swimwear are well suited to training and club swimming. Please note that this size guide covers Arena's training swimwear range, which is made from chlorine-resistant fabric designed to withstand regular pool use and retain its shape and colour over time. Arena does produce a separate range of FINA-approved competition suits for racing, which are constructed differently — if you are looking for a race suit specifically, please contact our team for guidance. For training, choose a size based on your child's body measurements for the best fit.
Rinse the swimwear thoroughly in cold fresh water immediately after every swim to remove chlorine and salt. Allow to dry naturally away from direct sunlight — do not tumble dry or wring out the fabric. Avoid sitting on rough pool surrounds as this can damage the fabric. With proper care, Arena's chlorine-resistant fabric will maintain its shape, colour, and performance properties for longer.
Arena's international sizing (France/International) and Australian sizing use age ranges (e.g. 6–7, 8–9). UK sizing uses a numeric year system (e.g. 22, 24, 26). All sizes correspond to the same body measurements — only the labelling differs. Use the body measurement rows in the size table to find the right size regardless of region.
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