When you're training for your first 11k sky-running race there's very little room for flaking out on your endurance drills simply because conditions are far from prime. Just grab the Rab Women's Muztag Jacket and say goodbye to that potential day spent on the couch--because after all training is a two way street; weather waits for no one and you won't wait for the weather to break either. Constructed with the ultralightweight eVent DVstorm fabric this three-layer rain shell features impervious waterproof protection that caters specifically to your high-intensity activity while simultaneously offering paramount breathability throughout the course of your adventure--so precipitation saturation remains on the outside (where it belongs if you ask us) rather than amassing on your internal layers and consequently makes for a more comfortable endeavor. In addition to its bulletproof fabric construction this rain shell features waterproof zippers A-line pockets drawcord hem hook-and-loop cuffs and a helmet-compatible hood that rolls down and can be secured with a hook-and-loop feature so you don't have to deal with extra fabric flopping around while you're crushing it on a tree-riddled downhill.