Features Enter your model number to make sure this fits. Nylon Guaranteed watertight OutDry construction Large zip-top opening for easy access into main compartment Close fitting suspension with on-the-fly compression and venting channels Easy access hydration sleeve Comfortable, fully padded hipbelt with two large zippered pockets Description Product Description Weather or not. Rainshadow technical backpacks are the right choice for weekend warriors who don't always have the luxury to wait for the perfect day. This 36L pack has a waterproof main compartment that was rain-room tested so it's good to go for biking, hiking and trekking when you want to keep your gear safe and dry. And when you do get caught in the rain, stuff your damp layers in the front stash pocket, which features drainage so you're never bogged down. Mountain Hardwear even added quick-dry mesh across all contact areas on the shoulder straps and back panel. Also features well-organized pocketing and easy-access hydration compartment.