What Our Gearhead(R) Experts Are Saying:"I have been wearing the Adizero A Jacket for warm-ups and cool-downs on track days, and it hits exactly the right balance between coverage and packability. The plain weave fabric cuts wind without trapping heat, so I can keep it on longer into a session than I expected."The window between arriving at the track and finding your stride is where the Adizero A Jacket from adidas earns its place in the rotation. Built in a regular fit from 100% recycled polyester plain weave, it delivers just enough coverage to take the edge off cool morning air without adding the bulk that makes you want to strip it off before the first rep is done. The plain weave construction moves with the body and resists the kind of wind that turns a pre-run warm-up into a miserable experience, keeping you loose and ready to work when the session starts in earnest. Bold colorway options bring the energy of classic adidas track style to a jacket that is built entirely from recycled materials, so the look comes with a lighter footprint attached.