Outdoor hiking pants, providing mild warmth, lightweight and durable. The fabric has excellent elasticity and shape retention in warp and weft, fully cooperating with the body's stretch during sports activities, making it more comfortable to wear. Three-dimensional cutting, more in line with the body's curves, the fabric has fluorine-free water-repellent function, which helps to block moisture. The semi-elastic waistband design fits the waist of the human body. Reflective printing enhances outdoor visibility and improves safety. The pockets on both sides are easy to take and put items. The zipper design prevents falling. The trouser legs can be tightened with drawstrings to prevent sand from entering.