Award-winning, trekking trousers in stretch fabric and G-1000. Now updated for even better performance, comfort and durability. Produced without PFCs, made for a lifetime of use. Fit & Design: Technically advanced trekking trousers with engineered fit Stretch fabric and G-1000 for freedom of movement, durability and protection Side zippers release excess heat, and double zipper sliders mean they can be opened in both directions Extra ventilation zippers along the calves Two hand pockets plus two leg pockets with buttoned flaps, one with an interior mesh pocket Knees have openings for knee pads (an accessory) Leg endings with buttoned strap adjustment, designed so that the strap can easily be removed