Our Award-Winning Ultra-Sil Day Pack Is A Minimalist Backpack That Has Incredible Strength-To-Weight Performance And Packs Down To The Size Of A Tennis Ball. The 30d Siliconised Cordura® Fabric And Reinforcing Bar-Tacks At Stress Points Enable It To Withstand Loads Many Times Its Own Weight. With A 20l Capacity, It´s Perfect For A Summit Pack, Carrying Groceries When On Foot Or On A Bike, Or As An Extra Traveling Tote. The Tiny Packed Size Also Easily Fits Onto Your Key Ring, In A Jacket Pocket Or A Purse. With Non-Padded Shoulder Straps, Our Maximum Load Limit Recommendation For A Comfortable Carry Is 15 Lbs / 7 Kg.Features:- Ultra-Sil 30d Siliconized Cordura® Fabric For Strength And Durability- Reinforced Shoulder Straps For Increased Carrying Comfort- Packs Into An Attached Stuff Sack That Includes A Handy Carabiner- Packs Down Small So It Easily Fits In Pockets, Purses Or Luggage- Perfect As A Lightweight Backup Or Travel Bag- Best Use: Summit Pack, Groceries, Travel- Special: Attachment Point For A Bike Light- Waterproof: Water Resistant – Please See Faqs Above- Zip Options: Two-Way Zipper ClosureSpecifications: Fabric: - Siliconized Cordura Fabric For Strength And DurabilityTechnology:Cordura:- Cordura® Is A Special Type Of Nylon Yarn Used For Its Strength. These Yarns Are Used In Two Different Product Areas: In The Siliconized Ultra-Sil™ Fabrics Used In Ultra-Sil™ Dry Sacks, Stuff Sacks, Compression Sacks, Pack Covers, Travelling Light And Travel Essentials Products In The Foot Section Of The Extremely Tough Event® Quagmire Gaiters.