Less is all you need. Weighing in at only 13 grams per sock our Vertex No-Show tabs are incredibly light but still incredibly tough. Plus they even have that handy lil' tab on the back so they slip on easy. True Seamless construction reduces hotspots and blisters. Ultra high stitch count creates a super comfortable sock with a streamlined fit like no other. No slipping, no bunching, no blisters. Fine gauge Merino Wool makes this a fast drying and breathable "all-weather" sock that stays cool in the summer and warm in the winter. And since Merino Wool is naturally antimicrobial this sock repels bacteria and odor when you're laying down the miles. Still made in Vermont. Guaranteed for life.