Vasque, Mens H2 Mountaineering Boot All Climbing >>> Climbing by Vasque More details and ordering info. A special element of Vasque's technical boots are the Monoflex Insoles. Designed of Hytrelr, an advanced chemical from DuPontr, these insoles have been shaped to precisely match each individual size. This assures that the heel placement, flex point and lateral stability remain proportional for all sizes.The strongest of the Monoflex insoles is the Alpine Monoflex utilized in the H2 mountaineering boots. The Alpine Monoflex is the most rigid due to the oak leather covering. Built for strength and durability needed in high alpine applications with crampons. User input on Mens H2 Mountaineering Boot by Vasque: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines