The Firewall Mountain Jacket excels when unpredictable weather threatens to interfere with outdoor adventures. Designed with full functionality and exceptional protection in mind, it utilises a 3-layer Pertex® Shield to repel everything from persistent drizzle to relentless downpours, ensuring explorers can continue undeterred. Built for year-round hiking, scrambling, and mountaineering, this jacket serves as a reliable all-mountain shell. Features The lightweight yet durable 3-layer Pertex® Shield keeps the wearer completely dry, even in harsh, rain-lashed conditions. A YKK® AquaGuard® centre front zip, complete with a chin guard, enhances comfort and protection. The highly adjustable hood, designed for mountain conditions, features a sturdy peak for added defence against the elements. Fully articulated sleeves allow for a natural range of movement and a more comfortable fit. Two hand pockets and a chest pocket are strategically positioned for easy access while wearing a harness or backpack. The dual-sided rear hem adjustment can be fine-tuned with a single hand for quick and convenient customisation. Underarm zips provide effective ventilation, helping to regulate body temperature during demanding ascents. The extended, adjustable cuffs are specifically designed to accommodate gloves, ensuring a secure and comfortable fit. Sustainability Features Fluorocarbon (PFAS) free fabric Fluorocarbon (PFAS) free product Specifications Fit Regular Weight 492 g / 17.4 oz(SizeM) Centre back length (Size M): 78 cm / 30.7 in Hydrostatic head 20,000 mm Breathability (RET) 20,000g/m²/24 hrs Product code QWG-96 Fabric Main Fabric: 40D Pertex® Shield 3-Layer construction waterproof technology with fluorocarbon-free DWR (133gsm) HH: 20,000mm/MVTR: 20,000 g/m2/24hrs Technology Pertex® Shield A fabric designed to be waterproof and windproof while remaining breathable, lightweight, and easy to pack away. Offered in 2, 2.5, and 3-layer constructions, it caters to varying levels of activity intensity and durability needs. Video Size Guide: Size Chest Waist Arm length XXS 86cm / 34in 68.5cm / 27in 81cm / 32in XS 90cm / 35.5in 71cm / 28in 83cm / 33in S 94cm / 37in 76cm / 30in 83cm / 33in M 102cm / 40in 81cm / 32in 86cm / 34in L 109cm / 43in 86cm / 34in 89cm / 35in XL 117cm / 46in 91cm / 36in 91cm / 36in XXL 122cm / 48in 96cm / 38in 91cm / 36in 3XL 129.5cm / 51in 104cm / 41in 93cm / 36.5in