Prevail Bariatric B Size Briefs. The Specialty Size Briefs fit waist sizes up to 100 Inches. These briefs offer a full-mat core design and a cloth-like backsheet with breathable zones. A breathable plus core also aids with air circulation to keep you cool and comfortable. These briefs utilize Easy-Lock Fastener ELF tabs that grip without being sticky to your skin. The fabric of the First Quality Prevail Specialty Size Briefs wick away moisture from your skin. Color: White, 10/bag, 4 bags/case.