... to retain warmth 3 times that of cotton, and 1, 2 times that of wool.* Good water repellency Because ... :Cotton Spinning: XNF SD 1.2D,1.5D, 38mm,51mmWool Spinning: XNF SD 1.5D,2.0D,2.5D,76mm,MCL(Multi Cut Length ... )Non-woven: XNF SD 2.5D ... ,51mmBlanket,Pile: XNF 2.5D, ...