Motocross Protective Jacket Alpinestars Sequence Long Sleeve made of resistant mesh material and with robust and open panels that allow the body to breathe. It's snug and stretchy, with adjustable drawcords that keep the lightweight protective panels in place. It also has a durable K-resin composite protection that makes it light and flexible, offering excellent protection. Integrated chest protection keeps the torso protected, while the back is made of lightweight, ventilated EVA foam and hard plastic. It has a flexible back that allows air to flow through the jacket, greatly increasing comfort. There are also rigid and thin protectors on shoulders and elbows.