If you redesign one of the most popular socks in the line you better come correct. Increased breathability with mesh panels on top of the foot, a new smooth ribbing upper that stays put forever, and extended cushion over the Achilles - just a few heavy additions to one of the lightest hike socks out there. Height: Micro Crew Weight: Lightweight Pair with: Hiking shoes, trail runners, fresh mountain air - Men's micro crew socks average 8.5 in. from heel to cuff - expect them to show about 6 in. above a low hiking shoe or just above a standard hiking boot. - A performance fit means no slipping, no bunching, no blisters for peak hiking comfort. - Light Hiker socks have cushioning underfoot, atop the ankle, and up the Achilles to keep feet comfortable for miles and miles. - Multi-zone mesh panels improve venting and flexibility, while reducing bulk and pressure points. - Merino Wool is at home on the trail, naturally moving moisture to keep feet fresh and dry in all weather. - Lightweight socks breathe naturally and deliver flexible, all-day comfort for summer hiking. - The "still" in Still Made in Vermont, USA is personal. We knit all our socks at our VT-based Mills - we can't imagine it any other way. - Unconditionally Guaranteed for Life - if these arent the longest lasting socks youve ever owned, return them for another pair. Style Number: 1972 Materials: 54% Nylon 43% Merino Wool 3% Lycra Spandex Cushion These micro crew hiking socks feature soft terry loops underfoot and targeted protection over the ankle and Achilles - our most popular cushion style. Men's/Unisex Size Chart Sock Size Shoe Size Men/Unisex Men's US Women's US EU UK XS 2.5 - 5 4.5 - 7 35 - 37.5 2.5 - 4.5 S 5.5 - 7.5 7.5 - 9.5 33.8 - 40.5 5 - 7 M 8 - 9.5 10 - 11.5 41 - 42.5 7.5 - 9 L 10 - 12 12 - 14 43 - 45.5 9.5 - 11.5 XL 12.5 - 14.5 - 46 - 49.5 12 - 14 XXL 15 - 17 - 50 - 53 15 - 16*** PLEASE NOTE: Blundstones cannot be shipped to Canada. Light Hiker Micro Crew Lightweight Hiking Sock - Denim