Topeak Wedge Drybag with Strap Mount Wt. 245 g / 8.62 oz Capacity 1.5 L / 91.5 ci Material 210 Denier and 420 Denier Nylon Waterproof Fabric, Sonically Welded Seams Insulation Rigid EVA Foam Attachments Nylon Straps / Buckle