Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
O.3.6.1.2.2 There are several different materials used in the construction of the fabric used to manufacture base layers. Examples are polypropylene, polyester, merino wool, or a mixture of these. Merino wool or a merino wool/manmade fibre blend seems to provide the best insulation and is comfortable to wear, although it is the most expensive. An added advantage of merino wool is that it is naturally anti-bacterial, thus it minimizes body odour. Base layers made from cotton should be avoided because cotton does not dry quickly and does not provide good insulation.O.3.6.1.2.3 In addition to providing insulation, a key requirement of a base layer is that it draws moisture (sweat) away from the body towards the next layer. This is known as wicking. All the materials named have good wicking attributes.