Thank you for viewing. A black nylon body bag. The mesh design provides good breathability and is easy to use. Gregory TAILRUNNER Item No.: 127361-6139 - Color: Black - Inner pocket: Yes - Material: Nylon - Features: Adjustable strap - Stains, tears, etc.: None [Width] 38cm [Height] 16cm [Depth] 10cm *There may be some error due to amateur measurements. A 500ml plastic bottle can fit horizontally.