The Prime line of backpacks is known for features like the "Load Spring" shoulder straps and the daisy chain webbing loops on the front. The Load Spring shoulder straps are engineered to help ease the weight of the backpack for more comfortable carrying. 3 large main zippered compartments. Pockets for pens Etc.Two side mesh water bottle pockets,Padded Laptop Compartment. Multiple Pockets. Size approx 19" (H) x 16" (W) x 11" (D). Media pocket