●Windproof and thermal: The cycling shorts are made of a two-layer composite material: the polyester fabric provides effective wind protection. The waffle fleece lining provides long-lasting warmth. ●Lightweight and loose: The improved material of the jogging bottoms eliminates the conventional bulky feeling while providing warmth and an overall lower weight. The straight leg design ensures good ventilation on the legs. ●Drawstring and Velcro fastening: The cycling shorts can be worn with an inner drawstring to regulate tightness and have a Velcro fastener on the calf that wraps around the foot to keep the cold wind away from the legs. ●Stretching and reflective: The patchwork seams on the knees ensure better elasticity and the reflective markings on the thighs and calves for more safety when riding at night. ●These tracksuit bottoms are suitable for autumn and winter, suitable for cycling, mountain biking, running, outdoor activities and much more. Tips: If you have any problems with the size or product, please do not hesitate to contact us by email and we will solve the problem correctly.