900D 100% Polyester   
 600D 100% Polyester Black  
 23 Litre   
 Zip fastening main compartment with internal separation   
 1 x Front expandable front pocket with zip fastening (2 zip sliders)   to fit a helmet  the expansion is in black mesh & expands to 26cm  
 1 x internal pocket for MP / iPod with rubber outlet for earphones