The Rab Firewall Light Jacket Mens is a reliable choice for those unpredictable shoulder season hikes. This jacket, crafted with durable 3-layer Pertex Shield fabric, offers lightweight and quiet protection against the elements. Its soft knitted backer ensures comfort whether worn over a t-shirt or layered in cooler weather. Designed for mountain adventures, it provides dependable weather protection from weekend hikes to extended treks. Two-way adjustable hood with stiffened peak for added protection Articulated sleeves for enhanced movement on steep terrain Backpack-friendly pocket positioning for easy access Extended cuffs with hook-and-loop adjustment to shield against wind Dual-sided rear hem adjustment to keep out rain YKK AquaGuard centre front zip with chin guard for comfort Fluorocarbon-free DWR finish for environmental responsibility Technical Features Hydrostatic head: 20,000mm Breathability (MVTR): 20,000g/m²/24 hrs Weight 368 g (12.9 oz) size M Size and Fit Fit: Regular Bac