Waterproof riding jackets Venture XT by Alpinestars. It is a 3/4 length jacket, so it covers the waist and keeps the area warm and supported. It belongs to the category of 4-season jackets. This means that you can comfortably use it in both high and low temperatures. It is made of synthetic fabric, a material that makes it lightweight. For this reason, it is preferred for prolonged use, such as city driving.