LAYERS THERMAL PANTS:ROCK BROS winter cycling pants fleece inside keep you warm in the cold weather.Moreover,3 layers recycle thermal system provide a windproof & water-resitant film which can isolate cold wind & water outside. (Tips: US S=Asian M, if you like loose ones, please choose 1or2 size up. )ERGONOMIC CONSTRUCTION&3D Tailor:High technology stitching and special elastic fabric on the knees release the tension & pressure while cycling or having sports.Perfect for cycling,winter bike commute, running,walking or other outdoor sports. COMFORT WAIST: Adjustable elastic waist coupled with dramstrings comfort and tightness freely during cycling sports NIGHT VISIBILITY&ADJUSTABLE PANTS STRAPS: High reflective strips around the pants improve dark visibility. ADJUSTABLE pants straps adjust leg opening convenience for you to wear.Fine work of real workmanship MULTIPLY POCKETS:Windproof and water-resisitant cycling jacket with multi-pockets around front and backside to store goods more convenience.Meet your needs with short distance sports such as cycling, running, hiking