The Phantom Jacket is one of the lightest waterproof shells available, delivering compact and barely noticeable protection for ultra running, mountain races, and long-distance thru-hiking. Designed with only the most essential features, it maintains high functionality without unnecessary extras, incorporating a practical full-length zip and a ventilated roll-away hood. When the skies clear, the jacket packs into its own hood, compressing down to a palm-sized bundle that fits effortlessly into a backpack or running vest, always within reach for unexpected showers. Features 7D 2.5-layer Pertex® Shield fabric, exceptionally lightweight with reliable protection against sudden downpours Optimised elbow precurve for unrestricted, natural running motion Full-length zip for quick and easy layering as the weather shifts Part-elasticated hem for improved fit and comfort Ventilated roll-away hood that doubles as an integrated storage pocket Reflective branding placed throughout for visibility in low-light conditions Rear hood venting to minimise billowing in strong winds, for stability on exposed ridgelines Secure elasticated cuffs with enough stretch to vent the forearms and access a sports watch Specifications Fit Slim Weight 116.5 g (Size M) Centre back length 73.5 cm (Size M) Hydrostatic head 20,000 mm Breathability (MVTR) 20,000 g/m²/24hrs Product code QWI-17 Fabric Main fabric 7D Pertex® Shield 2.5-layer construction, fluorocarbon-free DWR, 51gsm Colours Light Zinc, Maya Blue Sizes S, M, L, XL, XXL Sustainability Features Fluorocarbon (PFAS) free fabric Fluorocarbon (PFAS) free product Made with renewable energy 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 to suit varying activity intensity and durability needs. Rab's fluorocarbon-free fabrics are completely free of fluorocarbons (PFAS), whether in the face fabric, membrane, or backer. PFAS-free means all intentionally added PFAS have been phased out, compliant with current EU and US legislation. Video