You use a zipper to close this bag. This duffle bag is made exclusively from nylon and it holds 50 litres.
From The North Face
The North Face Base Camp Duffel - Small Summit Gold-tnf Black One Size (One Size)
The product is available from £85.40 at international stores.
RunningXpert
The North Face Base Camp Duffel - S Yellow OneSize
This product is also available at 3 unverified merchants.