I used this when going to the gym, etc., but I haven't taken it outdoors like hiking, so I think the bottom and other areas are in good condition. Capacity: 20 liters Weight: 775g Dimensions: W25cm x H45cm x D16cm Material: Cordura® 1000D (Polyamide 100%) Webbing: 100% Polyester It was originally designed to be rolled up (see image 6), so I will pack it in a rolled-up state for shipping. Thank you.