Medium fits waist circum. 32 -35.5 (when sizing measure around the middle of the waist) * Provides pain relief and compression for muscle injuries and general lower back dysfunctions; injuries to the lumbar discs and the sacro-illiac joint * 2 flexible internal stabilizers * Elastic side straps for custom compression * Breathable and moisture wicking * Color: beige Average lead time for shipping: 7 days.