Dr Lumbar Adjustable Brace with Boning and Rivets Small 22-32 (I got it to fasten pretty well at 34) Inches. This is a very firm and stable back brace. Boning forces the brace to fold into thirds, does not roll, cannot roll. Center back is curved 6 inches wide, front arms are 4 inches wide. Closes/adjusts with hook and loop tape that is 2 inches wide. There are 4 webbing loops for suspender straps (not included) and 3 webbing belt loops: one for center back, one loop on each side. Folds up flat to 6 inches wide x 14 1/2 inches long x 1 inch thick. Rivets are installed at all stress points.