REI Junction Long-Sleeve Full-Zip Cycling Jersey - Men's Size medium and measurements in photos With a full-zip front and warm, wicking, midweight polyester fabric, the men's REI Co-op Junction long-sleeve cycling jersey stretches your season way beyond summer. And feels darn good doing it. 4-way stretch midweight polyester/spandex fabric adds a touch of warmth for cool rides Features -Full front zipper lets you adjust ventilation -Double rear drop-in pockets -Backside is longer for coverage while riding and features gripper elastic to stay in place -Reflective elements enhance visibility in low-light situations -Made to reflect our love for people and the planet through the use of bluesign®-approved materials 93% polyester/7% spandex (bluesign® approved) New without tags condition