The M Bouldering 125 legging from Artilect is made from particularly fine merino yarn with a polyamide content to make it more durable and hard-wearing. The fabric is breathable, moisture-regulating and offers a very good warmth-to-weight ratio. The long briefs can be combined well with high hiking socks or ski socks, as the different fabrics do not rub against each other and therefore nothing pinches.