This is a double B standard backpack with a simple design. It's easy to use and convenient, suitable for various occasions. It's the right size and lightweight for things like field trips. ・Opens and closes with a double zipper ・Outdoor-style pull tabs on the zipper tops ・Front pocket with a gusset ・Pocket inside the main compartment ・Elastic shoulder straps for easy carrying, and a chest strap to prevent slipping ・Design with a pickel holder Capacity: 4 liters / Ages 3-4 (approximate age) (S) W20 x H25 x D10cm