Todos&reg; Foldable and Durable Lightweight Travel Backpack Made with high quality lightweight nylon material, Durable abrasion resistant. Easy to fold up into small pocket. Space saving for trips and outdoor activities. Storage and keeping things organized. Color :Black. 20 Liter for Compact Size: 25cm*18cm*4cm(9.84x7x1.57inches), Unfold size:45cm*31cm*15cm ( 17.7x12.2x5.9inches), ( 186g.) and ROOMY (30 Liters).