Our lightweight & breathable Proteus protector jacket functions as an upgrade for the DIRT Series collection, which is worn under the jersey or various jackets we offer.Ideal stretch, ventilation, & armor allow you to ride protected on the trails less travelled. It's constructed with a combination of densely woven Hicom mesh on the shoulders, a 2-way spandex mesh body, and PWR|Stretch mesh on the inner area of the sleeves. This combination provides optimal support, airflow, and flexibility.Furthermore, it features our award-winning SEEFLEX CE-level 2 protection at the shoulders and elbows. It is also equipped with a SEESOFT CE-level 2 back protector and SEESOFT CE-level 1 protectors at the chest. Thumb loops at the cuffs along with the stretch cuff will make sure the sleeves won't slide when you're putting it on or during riding.FEATURES Tight fit Lining: 3D mesh Integrated kidney belt Stretchable cuff Stretch at back, front & inside arms Fully ventilated mesh 3D mesh protector pockets SEEFLEX CE-level 2 Elbow Protectors SEEFLEX CE-level 2 Shoulder Protectors SEESOFT at ribcage SEESOFT CE-level 1 Divided Chest Protectors SEESOFT CE-level 2 Back Protector Thumb loops Outer shell material: Mesh, Stretch mesh