Jalzdieod size: M (cm inch) Applicable bust: 85-105 33.46-41.34 Material:Punching sponge, webbing colour:black Package Contents: 1 Correction Belt Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is - 1-3cm.Wear all day to retrain your posture- it's nearly invisible when worn under a shirt. Eliminates neck and back discomfort from sitting with rounded shoulders in front of the computer. Easily get perfect confident posture - start standing, sitting much straighter. padded corrector can be worn comfortably under or over clothing. Align your shoulders, spine and upper back. Improve posture reduce slouching immediately with easily adjustable dual strap design.