Coolmax is a polyester fiber with 4 grooves that move moisture by capilary action along their length. I am the guy that goes out in a flannel shirt when everyone else has on a parka, so I am always looking for cooler clothing. I find socks especially benefit from this moisture management capability. I used to wear cotton or wool socks, but now have almost exclusively Coolmax blends. I have hiking, casual, and dress socks in Coolmax blends.

Ordered my first kilt today (Hunting MacLeod Semi-Traditional from USA Kilts) along with 2 pairs of the wool blend kilt hose Rocky sells. Just hoping to find some Coolmax ones.