XLAB Stealth Pocket 100 Frame Pack: Carbon Tapered aero design features a 72 degree front that fits tight up against the stem Non-slip surfaces underneath and on the front of the bag redudes bag movement Non-slip rubber zipper pull for easy one-hand operation Silver colored interior makes it easy to find contents and features a stretch mesh pocket small items Proprietary insulation material at the sides to keep items coolMounts to top tube with Velcro strapsUltra durable carbon-look matte finishWater resistant material