Moves sweat away from the body thanks to the Moisture Transport System 100% polyester fabric is lightweight and breathable technology helps ensure the jacket stays fresh Quarter-zip design lets wearers block out the elements or regulate their body temperature as they train All-over micro-stripe pattern contributes to a sporty appearance Athletes will start and end the race in comfort while outfitted in the Under Armour Men's Stripe Tech 1/4-Zip Jacket. From track meets to early morning jogs, this lightweight jacket keeps wearers up and moving thanks to the soft, natural-feeling fabric. The Moisture Transport System wicks sweat away from the body, furnishing the runner with a dry, comfortable fit. Plus, the flatlock raglan sleeves give athletes a wider range of movement, so they can sprint to the best of their ability.