wanchel Merino Wool Socks for Kids Boys Girls Toddlers - Warm Thermal Winter Hiking Cozy Crew Socks 4 Pairs (US, Age, 4 Years, 7 Years)

["Material: 70% wool, 25% cotton, 5% polyester. Cotton to keep warm and absorb sweat, wool to keep warm, polyester to increase elasticity. 144 needle knitting technology makes socks warm, sweat absorbing and elastic.","Size: Please refer to the size chart in the picture for selection. For children aged 1-3, XS is suitable; aged 4-7 S is suitable; aged 8-12, M size is suitable.","The high-quality materials make these socks durable and easy to clean, resisting fading and maintaining their vibrant colors and shape."]