


| Women's Arena US Swimwear and Sportwear Sizing | ||||||||||
| Arena Suit Size | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| Arena Sportswear Size | M girls | L girls | XXS | XS | XS / S | S | S / M | M | L | XL |
| Ladies Dress Size | 8 girls | 10 girls | 12 girls | 1/2 | 3/4 | 5/6 | 7/8 | 9/10 | 11/12 | 13/14 |
| Chest | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| Waist | - | - | - | 22 | 24 | 26 | 27 | 29 | 30 | 32 |
| Hips | - | - | - | 30 | 32 | 34 | 36 | 38 | 40 | 41 |
| Torso | 53 | 54 | 56 | 57 | 58 | 60 | 61 | 64 | 66 | 69 |
| Women's Arena European Swimwear and Sportwear Sizing | ||||||||||
| US Suit Size | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| US Sportswear Size | M girls | L girls | XXS | XS | XS / S | S | S / M | M | L | XL |
| UK Suit Size | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| German Suit Size | 104 | 116 | 30/128 | 32/140 | 34/152 | 36 | 38 | 40 | 42 | 44 |
| French Suit Size | 4A | 6A | 32/8A | 34/10A | 36/12A | 38 | 40 | 42 | 44 | 46 |
| Italy Suit Size | 4A | 6A | 36/8A | 38/10A | 40/12A | 42 | 44 | 46 | 48 | 50 |
| Ladies Dress Size | 8 girls | 10 girls | 12 girls | 1/2 | 3/4 | 5/6 | 7/8 | 9/10 | 11/12 | 13/14 |
| Chest | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| Waist | - | - | - | 22 | 24 | 26 | 27 | 29 | 30 | 32 |
| Hips | - | - | - | 30 | 32 | 34 | 36 | 38 | 40 | 41 |
| Torso | 53 | 54 | 56 | 57 | 58 | 60 | 61 | 64 | 66 | 69 |
| Men's Arena US & European Swimwear and Sportwear Sizing | ||||||||||
| US Suit Size | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| US Sportwear Size | M boys | L boys | XXS | XS | XS / S | S | S / M | M | L | XL |
| UK Suit Size | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| German Suit Size | 128 | 140 | 152 | 164 | 176/3 | 4 | 5 | 6 | 7 | 8 |
| French Suit Size | 55/8A | 60/10A | 65/12A | 70/14A | 75 | 80 | 85 | 90 | 95 | 100 |
| Italy Suit Size | 8A | 10A | 12A | 14A | 1 | 2 | 3 | 4 | 5 | 6 |
| Waist | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 38 |
| Arena Euro Warm-Up Sizing | ||||||
| Euro Warm-Up Size | XXS | XS | S | M | L | XL |
| Women's Equivalent Size | 2-4 | 6-8 | 10 | 12 | 14-16 | 18+ |
| Waist | 24+" | 26+" | 28-30" | 32-34" | 36-38" | 40-42" |
| Hips | 36.5 | 37.5 | 38.5 | 40 | 44 | 46 |
| Arm Length | 30.5 | 31.5 | 32.5 | 33.5 | 35 | 36.5 |
| Leg Length | 29 | 31.5 | 33 | 34.5 | 35 | 37 |
| Arena Footwear Sizing and Conversion | |||||||
| Arena PowerFin Size | 33/34 | 35/36 | 37/38 | 39/40 | 41/42 | 43/44 | 45/46 |
| Men's European Size | 33/34 | 35/36 | 37/38 | 39/40 | 41/42 | 43/44 | 45/46 |
| Men's US Size | 3/4 | 4/5 | 6/7 | 7.5/8.5 | 8.5/9.5 | 10/11 | 12/13 |
| Women's European Size | 35 | 36/37 | 38/39 | 40/41 | 42/43 | 44/45 | 46 |
| Women's US Size | 5/6 | 6/7 | 7.5/8.5 | 9/9.5 | 10/11 | 11.5/12.5 | - |
| Order next whole size up if you wear a half size (i.e., size 8.5 would order a size 9) | |||||||