Z473300 ZAMST - ZW-3 size 1 - The rigid mesh insert improves the stability of the lumbar region. 2 - The unique fine mesh 3D mesh material prevents the belt from slipping during exercises. 3 - The back pocket allows you to insert hot/cold gel pads. IT IS GOOD FOR ALL SPORTS BUT IN PARTICULAR: GOLF, TENNIS, VOLLEYBALL, FOOTBALL, BASKETBALL, WALKING, RUNNING This type of brace is good even if you are not a sportsman even in daily life. SIZES AVAILABLE FOR READY DELIVERY: To find your size you must measure the circumference of your pelvis at the height of your navel. If the result is between the 2 measurements, choose the larger one. - SIZE XS: 65/75 cm.