Knitted poly-fabric construction is lightweight, durable and moisture-wicking.. Ergonomically engineered cut and strategical stretch inserts enhance mobility and freedom of movement.. Construction utilizes no side seams or underarm seams.. Laser-cut perforations on chest and arms for breathability and airflow.. Seamless bonded neck opening and seamless bonded cuffs for ease of use and comfort.. Extended rear for coverage and compatibility with Alpinestars MX pants.. Fade-resistant graphics..