Patagonia Women&';s R1 Air Fleece Vest Core warmth without the sleeves in your way. The R1 Air Vest is a specialist piece - Polartec Power Air fabric that traps warmth at your core while your arms stay unrestricted. That matters for ski touring, climbing, and anything where you&';re moving your arms constantly and don&';t want sleeves adding bulk under a shell. Layer it over a baselayer under a hardshell for a three-piece system that punches above its weight, or wear it solo on cold approach hikes where a full jacket would overheat you within ten minutes. Lightweight, packable, and more useful than it looks at first glance. Best for: Ski touring layering system, high-output cold weather activities, climbing approaches. Not for: Standing around in the cold - without sleeves it won&';t keep you warm when you&';re stationary. Grab the R1 full jacket for that. Fit: Slim, performance cut. Size up one if you want to layer a midweight baselayer underneath comfortably. Design: Breathable jacquard fleece construction with hollow-core yarns for warmth and moisture management. Fit + Feel: Slim, lightweight fit that layers easily under a shell without restriction. Trail-Tested Vibes: Perfect for layering on cool hikes, alpine climbs, or casual mornings when you just need core warmth. Features and Tech Specs: Fabric: 100% Recycled Polyester jacquard fleece with hollow-core yarns for warmth and breathability Fit: Slim fit designed for layering and active movement Moisture Management: Quick-drying, moisture-wicking fleece with odor control finish Hood: None Pockets: Two zippered hand pockets for essentials Hem & Cuffs: Elastic binding at hem and armholes for secure fit Weight: 275g (9.7oz) Care: Machine washable, cold cycle recommended Why You&';ll Love It: Lightweight warmth without bulk Highly breathable and quick-drying for active pursuits Slim, layer-friendly fit Sustainably made with 100% recycled materials Perfect for hiking, climbing, or everyday layering