Designed for year-round performance and sustainable comfort, the DeFeet Wooleator Pro 6" D-Logo Crew Sock is a lightweight, low-bulk Merino wool sock ideal for cycling or everyday wear. With added Lycra for a closer fit and a flat toe seam for improved comfort, the Wooleator Pro builds on the trusted design of the original. Made in the USA from responsibly sourced materials, including RWS-certified wool and recycled fibers, it delivers durability, breathability, and ethical transparency in one clean, minimalist package. No padding; suitable for 4-season wear Flat toe seam and added Lycra for enhanced fit RWS-certified wool with complete supply chain traceability Made in the USA with USA-sourced fibers Charcoal Materials: 61% USA Merino Wool, 37% Nylon, 2% Lycra Natural Materials: 36% Nylon, 31% USA Merino Wool, 31% USA Recycled Polyester Machine wash cool, tumble dry low or hang dry; avoid bleach and softeners Backed by DeFeet’s 5-year replacement guarantee