Buy mens and womens synthetic Insulation online from BCH Camping UK. Buy mens and womens synthetic insulation from suppliers such as Buffalo, Paramo and Berghaus. Buffalo are one of our biggest selling items of warm clothing. We sell the Mountain shirt, Special 6 and the Belay jacket. The Mountain shirt is a very popular, very warm, over the head jacket. The special 6 is slightly longer than the mountain shirt and with an even thicker pile making it even warmer. The belay jacket is a full zipped jacket offering a good degree of warmth. The real joy of buffalo clothing is that retains it's warmth even when soaking wet. A staple of the british military, it's no wonder that buffalo is perfect for all aspects of the great outdoors.