McDavid 495R Level 2 Back Support - Black5 steel stays provide rigid protection for weakness and minor instabilities Contoured and breathable construction for all day comfort, compression and soft tissue support Adjustable hook and loop closures for comfortable, secure fit Size Regular Large Measurement around waist 27 42'' 36 52'' Specification Mesh 90 nylon 10 lycra Panel 62 polyester 38 rubber Product Features Neoprene supports are intended for use during short periods(several hours) of