Rab Ultrasphere 4.5 Arcteryx Vertex Alpine GTX Perfect for spare guy lines

Perfect for spare guy lines

Weight: 582g

followed by a quick dip in a river after

The Proton is the ideal hiker or climbers jacket for when the valley bottom is hot but higher and more exposed terrain is much cooler

With a compact

Rab Ultrasphere 4.5 Arcteryx Vertex Alpine GTX Perfect for spare guy linesRab's TILT heat reflective technology which bumps up the warmth while adding a negligible amount of weight. The Ultrasphere 4. 5 is designed to be used in conjunction with Rab's Mythic Ultra 120 Modular sleeping bag, but is actually a great, superlight and warm mat on its own. Inside the Ultrasphere 4. 5 is two layers of Rab's TILT reflective film which reduces radiant heat loss without adding weight or bulk and does not rustle at all like other heat