Liberty Made® Cold Packs, Blue Vinyl Newly re-designed Liberty Made® Cold Packs provide an excellent means for applying cold therapy. Custom seal to reduce leakage. Reformulated flexible pack filler molds easily to the body and will not freeze solid. Durable, reusable design offers up to 30 minutes of treatment. For relief of pain from swelling, sprains, bruises, and muscle soreness. Standard models feature a PVC vinyl exterior and are available in five sizes. 12 month warranty.