Backpack:
• The compartment closed by U-style zipper;
• Divide the compartment into two ones;
• One pocket in each side and a zipper pocket in the front;
• Plastic piping covered by self material on the front; 
• There is a U-style zipper in the bottom.

Big cooler bag:
• The compartment closed by U-style zipper;
• 2.5*30cm PP webbing handles on top;
• With plastic triangle hook in bicycle backseat.

Small cooler bag:
• The compartment closed by U-style zipper;
• Plastic piping on top;
• Left and right side,there is a clear PVC pocket in the flap;
• Three strap loops for in bicycle backseat in the back and a mesh pocket in each side.