TBack for another season, the Chakal Trousers boast waterproof, windproof and breathable DryVent™ fabric technology, as well as Heatseeker™ insulation providing unbeatable warmth. You can let off some steam using the inner thigh vents, and the stretch fabric combined with the articulated knees ensure full freedom of movement. A relaxed fit at the waist and more room throughout the thigh, knee and cuff maintain your freedom of movement while carving up the mountain.