What's the difference between Neoprene foam types: B, K, L, and S?

Neoprene Foam Types

There are a variety of Neoprene foam types that offer different characteristics at different prices. The most common types used are B Foam, K Foam, L Foam, and S Foam.

Name	Characteristics	Typical Uses
B Foam	Made of 70% SBR and 30% CR Neoprene rubber. Although not as resistant to ozone as regular neoprene rubber sheets, the pricing is much more competitive. 47x87 inches ±5%	Orthopedic and sport support products. Animal orthopedic products. Accessories for indoor sports. Decorator items.
K Foam	Heavy density. Hardness is higher than L foam. Suitable for products with higher strength and more protection requirements.	Orthopedic and sports support products. Often used for kayak skirts and boots.
L Foam	Our regular 100% CR Neoprene foam. Soft and stretchable, ozone-resistant. 49x89 inches ±5%	All types of water sports and diving suits, boots, gloves and accessories.
S Foam	Lighter by about 20% than L foam. Soft, more stretchy than L foam, easy to put-on and take-off, feel the freedom of movement.	All surface water sport products such as surfing and triathlon suits.