Kids&'; micro crew socks average 15.5 cm from heel to cuff - expect them to show about 10 cm above a low hiking shoe or just above a youth hiking boot. A performance fit means no slipping, no bunching, no blisters for peak hiking comfort. Merino Wool is at home on the trail, naturally moving moisture to keep feet fresh and dry in all weather. Our warmest socks - heavyweight socks regulate heat, transfer moisture, and provide steady comfort in cold weather. 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 aren&&';;t the longest lasting socks you&&';;ve ever owned, return them for another pair. Full Cushion Full cushion socks have soft terry loops throughout the entire sock for ultimate warmth, rebound, and comfort.