AliMed® Utility Cushions Choose the foam that's right for you: Poly for most economical cost, Latex for cushioned comfort, T-Foam (Temper Foam) for the best pressure distribution, or Urethane for highest resilience and durability. Poly, Latex and T-Foam feature Sure-Check covers with ties. Sure-Check is waterproof, bacteriostatic, flame-retardant, reinforced vinyl. Urethane cushions feature Naugahyde® covers.