Bought three packs of "cotton" tie socks. Two more packages (from national brands) turned out to be bright and colorful. The color was barely visible on them. Most tie dyes are not effective on non-natural fibers. I would have to conclude that they are not 80% cotton as advertised.
Jefferies Socks Boys Seamless Toe Crew Athletic Socks 6-pack
47 Review
π Aminson Active Ankle Athletic Apparel for Girls and Boys
48 Review
π Premium Prince Athletic Socks - Active Black Boys' Clothing for Top-performance
45 Review
Boys' Gold Toe Ultra 𧦠Tec Back Stripe Crew Socks, 5-Pack
46 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review