FEATURES: Open mesh fabric with sturdy front zipper Enclosed seams (2) front chest pockets and (1) back pocket for gel pads Customizable size with 3 side straps Racerback design evenly distributes weight Includes (2) sets of gel pads to swap out Washable design (remove pads) Chest Pad Dimensions: 4.5" x 7.75" Back Pad Dimensions: 7" x 10.375" Weight: 2.5 lbs. One size fits most