Keen Healthcare Journey Comfort Convex Cushion/Low Risk offers pressure redistribution and comfort. Tru-Relief viscoelastic memory foam conforms to the individual. Convex bottom fills wheelchair sling seats. Incontinence-resistance, 4-way stretch, machine-washable cover with non-skid base and waterproof zipper. SADMERC approved for up to stage I. HCPCS code E2601 (General Use). Black.