The Alpinestars Ride Tech Winter Bottoms are a high specification, compression fit bottom developed to help reduce muscle fatigue and help control body temperature to keep you feeling comfortable and warm during cold/winter months. Ideal for many sports or activities such as Karting, motorcycle riding, Moto-X, cycling or other physical activities done in cold weather.Design for cold weather useOpen mesh structure on back thighCompression fit designStretch ribs on front and back kneeJacquard logos on kneeThe Alpinestars Ride Tech Winter Bottom has an open mesh structure on the back of the thigh for comfort and excellent breathability. It has a compression fit design to aid blood flow and reduce muscle fatigue, also there are stretch ribs on the front and back of the knee for additional comfort.