The Rab Women's Momentum Pants are ultralight, stretchy, and breathable enough to keep cool at hot trailheads and cover up when the summit's colder than expected. They feature an ultralight Matrix fabric with a fluorocarbon-free DWR finish for warm-weather comfort that extends into the alpine's occasional rainy shower. Articulated gussets all around allow full mobility up and down the mountain. The minimalist-minded waistband feels great paired with backpacks and harnesses, and there's an internal adjustment for a secure fit no matter what.