Size chart

This size guide covers Arena Men's Swimwear, sized by body measurements across a wide range from UK size 26 through to 44. Arena sizes men's swimwear by height, waist, and hip circumference. For the most accurate fit, always measure rather than relying on clothing size alone. International and Australian sizes are shown as numeric sizes.

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How to Measure — Arena Men's Swimwear
How to take body measurements for Arena men's 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.

  1. A
    Height — stand straight against a wall without shoes. Measure from the top of the head to the floor in centimetres.
  2. B
    Chest circumference — measure around the chest under the armpits, keeping the tape parallel to the floor.
  3. C
    Waist circumference — measure around the narrowest part of the waistline, usually just above the belly button.
  4. D
    Hips circumference — measure around the fullest part of the hips and seat, keeping the tape parallel to the floor.
Sizing Table — Arena Men's Swimwear
Sizing
UK Size 26 28 30 32 34 36 38 40 42 44
International 65 70 75 80 85 90 95 100 105 110
AUS Size 8 10 12 14 16 18 20 22 24 26
Body Measurements (cm)
A — Height (cm) 165 166 168 172 178 180 182 184 186 188
B — Chest (cm) 84 88 90 95 100 105 110 115 120 125
C — Waist (cm) 69 73 75 80 85 90 95 100 105 110
D — Hips (cm) 84 88 90 95 100 105 110 115 120 125

International sizes are numeric. UK sizes are even numbers. AUS sizes are even numbers. Always measure rather than relying on clothing size alone — Arena swimwear is sized to body measurements. If measurements fall between two sizes, speak to a member of staff at Allens for guidance.

Fit Notes — Arena Men's Swimwear
  • Always measure rather than going by clothing size. Arena swimwear is sized to body measurements, not high street clothing sizes. A UK size 32 in Arena may differ from a size 32 in another brand.
  • Focus on the waist and hip measurements as these are the key dimensions for men's swimwear fit. A good fit around the waist and hips with comfortable freedom of movement is ideal.
  • Arena men's swimwear is designed to sit securely during training. There should be no excess fabric and the waistband should sit flat without digging in.
  • Arena swimwear is made from higher chlorine-resistant fabric designed to withstand regular pool use. Rinse in cold fresh water after every swim and allow to dry naturally away from direct sunlight to preserve the fabric and colour.
  • Unsure? Contact our team or call +44 1827 330600. Speak to a member of staff at Allens if you are unsure.
Frequently Asked Questions — Arena Men's Swimwear

Measure your height, waist, and hips in centimetres and match these to the size table above. Always use body measurements rather than clothing size, as Arena sizing is based on body dimensions. If your measurements fall between two sizes, speak to a member of staff at Allens for advice on the best fit for the specific style you are interested in.

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 men's swimwear in this range covers UK sizes 26 to 44, corresponding to international sizes 65 to 110. If you are outside this range or need guidance on a specific style, please contact our team at Allens.

UK sizing runs as even numbers from 26 to 44. Arena's international sizing (France/International) uses numbers from 65 upwards in increments of 5. Australian sizing uses even numbers from 8 to 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.

Arena is a leading competitive swimwear brand and their men's swimwear and jammers are well suited to training and club swimming. This size guide covers Arena's training swimwear range, which is made from higher chlorine-resistant fabric designed to withstand regular pool use. Arena also produces a separate range of FINA-approved competition suits for racing — if you are looking for a race suit specifically, please contact our team for guidance.

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.

If your measurements fall between two sizes, we recommend contacting our team at Allens for advice. The best size will depend on the specific style — some styles have more stretch than others. Our team can advise based on the swimwear you are interested in. You can reach us via the contact page or by calling +44 1827 330600.

Arena offers a range of men's swimwear styles including jammers, brief-cut swimwear, and longer-leg shorts, all available in chlorine-resistant training fabrics. Jammers provide full thigh coverage and are popular with competitive and club swimmers. Brief-cut styles offer maximum freedom of movement. All styles in this range use higher chlorine-resistant fabric for durability in regular pool training. Contact our team if you would like help choosing the right style.

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