The latest 3 layer Gore-Tex Pro shell technology is heavily employed in these Haglofs Roc Pants. The hard wearing 40 denier face fabric is backed up by a further 70 denier plain weave fabric in the knees & seat for ultimate durability in harsh conditions. Vulnerable areas from crampons such as the insteps of the legs are further backed up by Scholler Keprotec fabric to reduce the chances of any mishaps with your spikes. The Roc Pants also feature water resistant zippers throughout plus full side zips for ease of pulling them on & off.