We take our speed seriously, so we opt for the best in our running 'fits, all the way down to our socks. The Trail Run Ultra Light T2 Merino Sport Low Sock uses merino wool, targeted cushioning, and integrated ventilation to ensure our feet are as comfortable as possible while striking the ground with unbeatable velocity. Its stabilizing cushion and compression keep our stride balanced, and technical materials manage moisture and odor for a fresh fit and feel.