Neoprene is a synthetic rubber with many uses, including:
Waterproof: Wetsuits, scuba gear, and other water-resistant applications
Insulating: Jackets, boots, gloves, and hats
Shock absorption: Car bumpers and dashboards
Medical: Padding for orthopedic braces, prosthetic devices, and personal protective equipment (PPE)
Automotive: Fan belts, hose covers, shock absorber seals, and breaking and steering system components
Construction: Sealant between metal and concrete
Electronics: Insulator in power transformers, light bulbs, and other electrical applications
Other: Cable jackets, tubing, Orings, seals, tire-sidewalls, gasoline hoses, and yoga mats