Arena Kids & Boys Training Size Chart

Find the recommended Arena size for boys' training swimwear, including jammers, swim shorts, briefs and regular junior performance swimwear.

Arena junior swimwear uses the French (F) sizing system as its primary size reference. For the best fit, use the swimmer's body measurements rather than relying only on age.

International Size Conversion

France (FR) / Arena 1–2 2–3 4–5 6–7 8–9 10–11 12–13 14–15
UK 19 20 21 22 24 26 28 29
US 2T 3T 4T 22 24 26 28 29
EU / DE 92 98 110 116 128 140 152 164

Body Measurements

France (FR) / Arena 1–2 2–3 4–5 6–7 8–9 10–11 12–13 14–15
Height (cm) 90 98 110 116 128 140 152 164
Chest (cm) 49 51 53 55 60 70 77 85
Waist (cm) 49 50 51 55 59 63 67 71
Hips (cm) 50 55 60 65 70 75 80 85

How to Measure

Height: Have the swimmer stand barefoot and measure from the top of the head to the floor.

Chest: Measure around the fullest part of the chest, keeping the measuring tape horizontal.

Waist: Measure around the natural waistline without pulling the tape too tight.

Hips: Measure around the fullest part of the hips and seat while standing naturally.

Choosing Your Arena Size

Arena boys' training swimwear is designed for a close and secure fit in the water. Age is a useful reference, but body measurements should be used when choosing the most suitable size.

If the swimmer's age and measurements correspond to different sizes, prioritize actual body measurements rather than age alone.

If you are unsure which size to choose, contact Aqua Style with the swimmer's height, chest, waist and hip measurements for sizing assistance.

Please note: This guide applies to Arena boys' regular training swimwear, including jammers, shorts and briefs. Arena junior Powerskin racing suits use a separate racing size chart.