Slip comfortably into your trainers every day of the week in these cotton-rich trainer liners. Added stretch boosts the comfort factor while Freshfeet technology keeps your feet and your trainers in top condition. Reinforced heels and toes make these socks to last.81% cotton, 18% polyamide and 1% elastane- Pack Size: 7 pairs of socks per pack- Trainer liner- Added stretch7½-10 size will fit - 14-16 years 8½ -12 size will fit- 3-6 years 12½-3½ size will fit- 7-10 years 4-7 size will fit- 11-14 years