Ultra-Packable, Variable Weather Protection With Pertex Diamond Fuse Technology!The icionic, award-winning Helium Rain Jacket is a lightweight, ultra-packable outdoor essential any time the forecast calls for cloudy weather. Pertex Shield Diamond Fuse 2.5-layer fabric delivers rugged durability that breathes as the pace quickens while fully taped seams keep moisture and wind at bay on gusty ridges or drizzly descents.Reflective chest logo and forearm overlays increase visibility in low-light envrionments, and the jacket stuffs into its chest pocket for quick storage in a pack.