Listings show a mix of soft- and hard-construction materials. Soft/carry coolers and sleeves commonly use neoprene or polyester, while hard coolers use plastics such as high-density polyethylene (HDPE), polyethylene, polypropylene, polyurethane/urethane and other molded plastic constructions.
Insulation varies by style: slim can sleeves typically use neoprene, soft coolers use foam layers, and hard coolers use thicker foam (including proprietary foams) or closed-cell foam in varying thicknesses for multi-day cold retention.
Common features include leak-resistant or tight-seal designs, interior gasket seals, lid locks, and detent or secure hinges—features that help reduce spills and prevent leaks.
Care instructions vary by model: many recommend spot cleaning or wiping clean, others advise washing with water and mild detergent or soap and water. A few listings do not provide care instructions.
Common lid and access features include side or one-hand opening designs, swivel or side-opening lids, detent hinges that hold the lid open, interior gasket seals and lid locks for a tight seal, and dual side-opening lids on some models.