Rab - Womens Downpour Plus Pertex Shield Jacket - UK M The Rab Downpour Plus is a waterproof and breathable rain jacket engineered for mountain use and active trekking. Constructed from 2.5-layer Pertex Shield fabric, this jacket provides a balance between weather protection and packability. It features an adjustable helmet-compatible hood with a flexible polymer peak, YKK AquaGuard front zips, and pit zips for ventilation during high-output activities. The adjustable cuffs and hem drawcord allow for a personalized fit, while the articulated sleeves provide freedom of movement.