The Ultra-Sil Daypack is the perfect bag for quick alpine summits, or even just for carrying your groceries after a trip to the local market. This amazingly streamlined and packable backpack features 20-liters of storage capacity. It’s made of Siliconized Cordura fabric, which is immensely durable and packs-away into a moderately sized jacket or purse pocket. Bartack stitching reinforces the bags' structure ensuring you can haul heavier loads.