These black Arc'teryx Gamma LT trousers have been crafted from a woven lightweight, air permeable four-way stretch fabric. They feature a mid rise, straight legs, zip side pockets, a silver tone belt buckle, an elasticated waistband and logos at the sides. Finding the perfect pair of Arc'teryx trousers isn't as easy as ABC. Rather, it's a case of alpha, beta, gamma - as the Ancient Greeks would have put it.