Fanny pack has a main pocket 8.5" × 5.5" with top zipper entry and open top mesh panel on the exterior. Two side pockets are 5.75" × 4" × 1.75" with top entry zippers and each one having a 3.5" × 4" × 1" piggyback pocket attached to it. One water bottle pocket 3" × 3" × .75" that includes zipper entry. All pockets are mounted on a 6" × 26" pad with an adjustable 2" nylon belt with buckle that will fit up to a 60" waist, attached hanging loop, 265cu. in.Fabric is waterproof but the seams are not sealed so it will not be 100% waterproof.