These wool socks are very thick but seem to keep my little feet warm. My daughter is 16 months old and has tiny feet (still in a size 3 or 4) but I needed something for her winter boots. They will last you a long time :) I fully recommend them to other buyers.
π Premium Prince Athletic Socks - Active Black Boys' Clothing for Top-performance
45 Review
Aminson Grip Ankle Socks: Non-Skid Slipper Crew Socks for Kids Boys and Girls - 6/12 Pairs
49 Review
12-Pack of Jefferies Seamless Sport Socks for Boys
45 Review
π Aminson Active Ankle Athletic Apparel for Girls and Boys
48 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review