Details: A weather resistant mountain bike seat pack to carry the bare essentials. Seamlessly molded EVA foam with 600 Denier Polyester, the ProPack has a sleek profile and is super lightweight. 360° reflective piping increases visibility for added safety. QuickClick™ compatible for fast, easy transfers between bikes. Capacity: 0.43 L / 26 ci Material: 600 Denier Polyester & EVA Foam Added Features: 3M™ Reflective Piping, Extra Water Repellency and, Resistance to Staining * 3M™ is a registered trademark of 3M Company Bag Attachment QuickClick™ Mount (F25) Size (L x W x H): 14 x 9 x 8.5 cm, 5.5” x 3.5” x 3.3” Weight: 78 g / 2.75 oz