The warmest fully waterproof jacket in the Arc'teryx Essentials collection.
The Fission provides a high level of warmth with waterproof, breathable GORE-TEX protection. With a focus on versatility in severe conditions, the thermally efficient construction pairs Coreloft™ Continuous synthetic insulation with a highly air-permeable liner to allow vapour to quickly reach the GORE-TEX membrane. This improves breathability without sacrificing warmth. The durable GORE-TEX outer shuts out rain, snow and wind, and the insulated DropHood™ and collar add protection and warmth.
Technical Features Waterproof Breathable Insulated Construction Micro-seam allowance (1.6 mm) reduces bulk and weight Tiny GORE seam tape (13 mm) Hydrophobic Coreloft™ Continuous insulation paired with Permeair™ 20 creates a lightweight, exceptionally breathable, thermally efficient system Design & Fit One-hand adjustable drawcords Relaxed fit with e3D fit for easy layering, svelte profile and functional articulation, Thigh length, with e3D patterning, Centre back length: 73 cm / 28.75 in Patterning Articulated elbows Hood Configuration Helmet compatible DropHood™ Insulated hood Collar Configuration Stand up collar Integrated fitted collar panel for added warmth and comfort Laminated chin guard Insulated collar Zippers & Fly Configuration WaterTight™ external zippers WaterTight™ Vislon front zip Cuff & Sleeves Configuration Die-cut Velcro® cuff adjusters reduce bulk, and won't catch or tear off Hem Configuration Drop back hem Full seat coverage Adjustable hem drawcord Pocket Configuration Internal chest pocket with zip Two insulated hand pockets with zippers Internal mesh dump pocket Two chest pockets with zippers Note: Our WaterTight™ zippers are highly water resistant, but not waterproof. We do not recommend keeping items in your pockets that may be damaged by moisture