Made from ultra soft bamboo made from viscose materials; this Upsie Belly™ provides immediate relief and comfort for your back & growing baby belly, making it easier to increase your range of motion and daily activity throughout your pregnancy. It features revolutionary SecureStretch™ materials that mould to your body with just the right amount of tension thus allows for strong support and a stable fit while the exclusive soft-front closure allows you to move freely, without digging or discomfort., , THIS BAND WORKS DOUBLE DUTY! Use it AFTER you deliver for added comfort and relief. Simply turn the belt around and fasten it in the back so the hot/cold pack lays over your healing belly., , SIZING:, Small: 31" - 38" / 78cm - 98cm, Medium: 39" - 46" / 99cm - 118cm, Large: 47" - 58" / 119cm - 147cm, X-large: 59" - 70" / 148cm - 178cm.