The Performance Crew is the sock that started it all. Mid-calf height, premium construction, and FirstOn's signature C4 Technology — this is the go-to sock for first responders, athletes, and anyone who spends long hours on their feet and refuses to compromise on comfort.
100% Made in the USA with 100% USA-made fibers.
🧪 Premium Materials
Nylon for lasting durability and structure
LYCRA® Spandex for a secure, contoured fit
FYnesse® STA-COOL® Polyester to prevent blistering
CuTECH® copper-infused fiber to enhance circulation and reduce bacteria
Silver Tech Anti-Microbial to fight foot odor and infection all day long
💪 C4 Technology — Performance You Can Feel
Comfort — Stay-put comfort band keeps the sock in place, even in "hungry boots"
Contouring — Graduated compression contouring prevents swelling on long shifts
Compression — Targeted support for your ankles, legs, and arch
Cushioning — Extra padding in the heel, ball of foot, and ankle reduces impact and friction
