Big temperature changes are not uncommon in warm climates but with these zip-off trousers, you are ready for both the midday heat and the cool of the evening. They have maximum ventilation and are comfortably cool, even on really hot days. Their simple style is just as well suited for city life as it is for easier trekking. Lightweight G-1000 Air with maximum ventilation. 65% recycled polyester, 35% organic cotton. Zip-off feature. Fixed-length leg endings. Regular Fit. Classic, simple style. Leg pocket with zipper. Inside security pocket. Two hand pockets. Articulated knees. Gusset in crotch for comfort and freedom of movement.