Designed to employ the unused space beneath the top tube, the Midloader is designed for the heaviest of bikepacking gear Constructed from lightweight yet durable, highly water resistant materials Dual weather resistant zippers allow easy access from either side Mounts securely with hook and loop fasteners Velcro Straps 14.8x4.7x2.4` 183 c.i. Black Medium (101-200 c.i.)UPC/EAN/GTIN: 883466017023