... Bosilun is better than other fiber;2, Blending with wool, burning the yarn, and it can be no caking ... when the proportion of the wool less than 28%, as we all know than acrylic ... this is very similar to the scaly surface of wool fiber, it also has the function of absorb sweat ... to 158mm (usually 250kg/bag)The general length of the top: 76mm, 88mm, 102mm, 105mm, 110mm (usually 200kg/bag) ...