Saucony Women's Omni Drylete Sport Top 92% Polyester/8% Spandex Velocity Knit Imported Reflective stitching on front and back and reflective insets at back shoulder keep you extra bright in low light Superior stretch thermal fabric with exceptional moisture management keeps you dry and comfortable Envelope thumb holes on seam and extra cuff length keeps your hands toasty USB_LED rechargeable clip-on light never needs batteries Reflective stitching on front and back and reflective insets at back shoulder keep you extra bright in low light