IFBLANK(8" Wide comfortable neoprene that is easily adjustable for a perfect fit. Retains heat and can be worn over or under clothing. One size fits all. WashableFeatures include: Constructed of 8 inch wide comfortable neoprene for heat retention Easily adjustable for perfect fit Can be worn over or under clothing, Valeo Neoprene Waist Trimmer, 1 Sz, Black)