When you want to hike light and fast, the less resistance the better. That's where flex can help. So Keen took the proven hybrid hiker-sneaker platform and added KEEN.BELLOWS FLEX at key flex points. For a women's waterproof hiking sneaker that flexes where you do. The performance ripstop mesh upper is durable without any bulk. Ready for anything with KEEN.DRY waterproof protection and KEEN.ALL-TERRAIN traction for better grip on a variety of trail surfaces.