Tailored to meet the demands of big wall climbing, the Rab Men's Borealis Jacket steps to the plate as Rab's lightest softshell available, bringing along wind- and water-resistance, stretchy mobility, and high levels of breathability. Its lightweight Matrix 2-way stretch construction with DWR allows you to move nimbly upwards in unrestricted comfort while also shedding light precipitation in uncertain weather. The low-profile, under-helmet hood has a Lycra binding to secure your protection without compromising safety, as do the cuffs to cinch tight a snug barrier against the elements. Covering all the bases, Rab gave this alpine piece built-in UPF 50+ to protect you from damaging UV rays when you're on high and close to the sun, and designed it to pack down within its own chest pocket for easy storage.