Part Jekyll, part Hyde. The Joe Rocket Women's Alter Ego 2.0 Pants have the split personality of a wind breaking RockTex 660 shell and a removable waterproof liner, while zip off sections expose the FreeAir panels that let the wind in on those blistering hot days. The next time you head out, be prepared for whatever Mother Nature, or anyone else for that matter, throws at you.; ; RockTex 660 shell construction Height adjustable CE rated knee protectors Removable high density hip padding FreeAir mesh panel with zip on cover Removable waterproof liner Two-way leg zippers Height adjustable hem SureFit adjustable waistband 8" zipper for jacket attachment