Main material: 300d twill polyester, Color: blue/ orange / green / black / brown Construction:bottom is circular, diameter is 42cm, and have a closure system of string+buckle lock. Brief description: 1, 300d twill polyester, durable. 2, customizable with your own logo or picture. 3, industrial level auto-lock for easiest bag open and reliable tightening. Weight:50gram per piece