Men's Classic Merino Wool Crew - Black - 88AMERINO WOOL it's only NATURAL. Single layer, jersey knit fabric Fabric Weight: 5. 0 oz 170 gsm Fiber Content: 100% Merino Wool Naturally occurring moisture management and UV protection Crew neck Set in long sleeves Dropped shoulder seams Drop tail maintains coverage Flat seams to prevent chaffing Self fabric cuffs Tagless labeling Style #88A Care Instructions: Turn inside out before washing. Machine wash cold with like colors on gentle cycle. Do not