AERO|TECH|DESIGNS Men's Reflective Cycling & Running Jacket Polyester Stay visible using patented IllumiNITE retro-reflective technology; millions of microparticles placed on the torso, sleeves, and back reflect light back at the source to keep you extremely visible in low light and during all weather conditions Highly water resistant shell; available in two colors Men's Sizes (in inches): S (35-37 chest; 33 sleeve; 28-30 waist) M (38-40 chest; 34 sleeve; 31-33 waist) L (41-43 chest; 35 sleeve; 34-36 waist) XL (44-47 chest; 35.5 sleeve; 37-40 waist) 2X (48-51 chest; 36 sleeve; 41-44 waist) 3X (52-54 chest; 36.5 sleeve; 45-48 waist) 4X (55-60 chest; 37 sleeve; 49-51 waist) *NOTE: Measurements in inches. Sleeve measurement is from top of shoulder to bottom of cuff Lightweight, breathable fabric with 4 zipper pockets, adjustable waistband, polyester wind-blocking sleeve cuffs, and a soft fabric collar Great for any outdoor activity: cycling, running, walking, and hiking. Also available in &lt;a href="http://www.amazon.com/gp/product/B005WKJOY6"&gt;Men's Tall&lt;/a&gt; and &lt;a href="http://www.amazon.com/gp/product/B005UPO402"&gt;Women's&lt;/a&gt; sizes