Thank you for viewing. - It has many pockets and is easy to store things. The two outer pockets have Velcro closures and flaps, and the back pocket also has a Velcro closure. The pockets on both sides can hold a water bottle or a folding umbrella. There is also one pocket inside. - The shoulder strap is adjustable. Height: 40cm x Width: 39cm x Depth: 15cm (at the widest point) Gusset: 15cm