To help make Smartwool's Athlete Edition Run Raven Print Crew Socks performance-driven, they tapped ultrarunner Rob Krar to benefit from his experience logging hundreds of miles on all different terrain. The result is as eye-catching as it is functional: With ZQ-certified Merino wool as its odor-resistant base, this sock adds in a performance-oriented fit, a Virtually Seamless™ toe, and breathable mesh zones. It’s all capped off with Indestructawool™ and Shred Shield™ technologies for enhanced durability. This run sock is bound to help your feet go far and feel good while you go the extra mile (or hundred).Features: Sock Height: Crew Sock Cushion: Targeted Cushion Rob Krar signature sock Indestructawool™ technology with extended durability zones 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Shred Shield™ technology reduces wear from toes Mesh zones for added breathability Virtually Seamless™ toe for enhanced comfort 8" overall height Made in the USA Composition: 53% Merino Wool 41% Nylon 2% Recycled Nylon 3% Elastane 1% PolyesterCare Instructions: Machine Wash Warm 30 degrees, Inside Out Non-Bio Detergent Do Not Bleach Do Not Use Fabric Softener Tumble Dry Low Do Not Iron Do Not Dry Clean Smartwool Men's Athlete Edition Run Raven Print Crew Socks Alpine Blue B25 SW001789