Silva
Men's Socks
| Product Label | UK | Heel - Toe | EU | US |
| S | 3 - 5.5 | 22 - 24.5cm | 36 - 39 | 4 - 6.5 |
| M | 6 - 8.5 | 24.5 - 27cm | 40 - 43 | 7 - 9.5 |
| L | 9 - 11.5 | 27 - 29cm | 44 - 47 | 10 - 12.5 |
| XL | 12+ | 29+cm | 48+ | 13+ |
Women's Socks
| Product Label | UK | Heel - Toe | EU | US |
| S | 3 - 4.5 | 21 - 23.5cm | 35 - 37 | 4 - 6 |
| M | 5 - 6.5 | 23 - 25cm | 38 - 40 | 6.5 - 8 |
| L | 7 - 8.5 | 25 - 27cm | 41 - 43 | 8.5 - 10 |
Junior Socks
| Product Label | UK | Heel - Toe | EU | US |
| Junior (S) | 10 - 12 | 16.5 - 18cm | 28 - 30 | 11 - 13 |
| Junior (M) | 12 - 1 | 18 - 20cm | 31 - 33 | 13 - 2 |
| Junior (L) | 1 - 3 | 20 - 22cm | 34 - 36 | 2 - 4 |
| Junior (XL) | 3 - 5 | 22 - 24cm | 37 - 39 | 4 - 6 |