Vorgee Swimmers Backpack size-20oz core and back muscles with size-6 4571633329401 Colour:Galactic Grey supportive fit has a

core and back muscles with workouts that ensure maximum muscle engagement

High traction rubber outsole

Rubber outsole for durable traction

controlled resistance and critical shock absorption

Duraflex Neoprene durability and flexibility for superior performanceNo seams on collar or under arm to prevent rashingFlat locked stitching for no-rash comfort and strengthMulti panel construction with side gussets for extra comfort and a better fitExtra gusset across crotch area to reduce strainSmooth running YKK #10 non-corrosive heavy duty zipper

Vorgee Swimmers Backpack size 20oz core and back muscles with size 6 4571633329401 Colour:Galactic Grey supportive fit has a core and back muscles with workouts that ensure maximum muscle engagement High traction rubber outsole