Instant Therapy - Non-Insulated, 6" x 10" Accu-Therm Hot Packs: Non-Insulated, 6" x 10", Qty. 24 Reinforced Medline Accu-Therm Hot Packs Conform to Affected Areas Better for Most Effective Therapy Our Accu-Therm Hot Packs feature a reinforced soft nylon pliable poly bag with heavy duty seal that is more comfortable and conforms better than our Standard Hot Pack. Our Standard Hot Pack features a standard weight poly bag. A compress holder is required because these hot packs should not be applied directly to the skin.