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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.