The Injinji Outdoor Mini-Crew otherwise known as the Injinji Outdoor Mini Trail is hands down the BEST sock I've ever owned. The material is 70% nuwool, which I love because it's cool, thin, strong, and most importantly DOES NOT STINK. The problem I have with the most popular Injinji sock, the regular Mini-Crew, is that it begins to STINK after one day of wear because it's made out of 100% Coolmax. My only complaint with the Outdoor Mini-Crew is that it's not available in BLACK. Do you hear that INJINJI? I also love that my Injinji socks fit well with my Correct Toes and Stem Footwear.