Oboz 100008 Thermal Trail Insole

100008 Oboz Thermal Trail Insole Cold feet can ruin a perfect day on the trail. Oboz&';s new Thermal Trail Insole has all the comfort and protection of the Trail Hike Insole, with the addition of Solarcore thermal insulation. Developed for NASA, Solarcore&';s Aerogel technology uses trapped air to provide unparalleled thermal performance. Best for Winter Oboz&';s anatomically-designed insole maximizes stability and support with a medium arch and deep cushioning heel cup Sizing XXS: W&';s US shoe size 5.5 - 6.5 XS: W&';s US shoe size 7 - 8 S: W&';s US shoe size 8.5 - 9.5 / M&';s US shoe sizes 7 - 8 M: W&';s US shoe size 10 - 11 / M&';s US shoe sizes 8.5 - 9.5 L: W&';s US shoe size 11.5 - 12.5 / M&';s US shoe sizes 10 - 11 XL: M&';s US shoe sizes 11.5 - 12.5 XXL: M&';s US shoe sizes 13 - 14