This is a mesh design lumbar supporter that strongly supports and corrects posture with 5 metal boning and 8 fixing belts. - Number of metal boning: 5 - Number of fixing belts: 8 - Design: Mesh - Function: Posture support - Strong fixation: Strong fixation Thank you for looking. I wore it once over my clothes, but it didn't fit, so I'm selling it. Size S Purchase price: 3280 yen Recommended by chiropractors, corset, lumbar supporter, waist belt, waist, belt for waist, summer use, lumbar spine, pelvic belt, waist, support belt, lumbar spine belt, lumbar corset, women, men, pelvis, posture, thin, lumbar spine corset.