"karrimorSF (KarrimorSF (KarrimorS)" refers to the UK Karimar company continued to research durability and comfort in more severe situations, and is a multi-functional and high-quality model series of military specs created from our know-how. KS100e is a durable and water resistant material coated with silicone/PU estrammer, 1000 denier nylon fabric with excellent tear strength and bending durability.Used in all karrimorSF models.