Casström Lapland Leather Wax is optimized to protect cases, knife sheaths, and holsters to ensure that they maintain their rigidity and shape. Other leather greases, that soften and make leather supple, shouldn't really be used on knife sheaths where we want to hold the strength and form of the sheath. Lapland Leather Wax is Casström’s own blend of mainly natural products such as beeswax, carnauba wax, and neatsfoot oil.