Made with a Pu-Coated Fabric, This Unisex 27L Roll Top Backpack Rucksack Resists to Wind & Rain & Offers a Reliable Protection for Your Travel Essentials.This Backpack Rucksack Can Fit Up a 15??? Laptop in Its Dedicated Sleeve & All Your Travel Essentials as Its Roll Top Closure is Adaptive. It Also Provides Two Water Bottle Pockets & a Zippered Front Pocket.With a Breathable Back Panel, Contoured Padded Shoulder Straps, & Adjustable Sternum Strap, This 27L Backpack Rucksack is Comfortable To Minimum Quantities Apply.