Polygiene treatment keeps the base layer fresh. Moisture-wicking material prevents sweat from pooling on the body. An engineered pattern for optimal performance. Designed for warm weather riding and to prevent the build-up of heat and sweat, Alpinestars Ride Tech v2. Top Short Sleeve Summer keeps you cool and comfortable under your suit and jacket with the added benefit of helping a rider get in and out of a suit. Fully body-mapped construction with Lycra stretch spandex in main chest and back areas and strategically positioned open mesh inserts for ventilation. Purposely designed to work with Alpinestars' suit and jacket ventilation for improved cooling and comfort. Comfortable, moisture-wicking fiber aids all-around body temperate control and performance in hot conditions. Muscle supporting compression fit helps reduce fatigue. Pre-curved sleeves and ergonomic flatlock seams for optimum levels of comfort.