Product DescriptionUnder wader layering just got a whole lot better!If layering up for cold weather fly fishing has been an issue for you (as it is for most), the answer is the Patagonia Men's Long-Sleeved R1 Fitz Roy 1/4 Zip. Built with Patagonia's tried and tested R1 fabric for lightweight, breathable and warm comfort, the R1 Fitz Roy 1/4 Zip maintains a low profile for layering under waders, is breathable when you're 200m into that 5km hike and peeling layers faster than you can strike, and is warm for when you stop and finally start fishing. Shoulder and forearm reinforcements provide durability and water resistance from light drizzle, and a chest pocket keeps valuables safe. Forget bulky hoodies and feeling like the Michelin man when fly fishing in the tale out of the season and layer up in the Patagonia Men's Long-Sleeved R1 Fitz Roy 1/4 Zip. FeaturesWarm, moisture-wicking Polartec Power Grid fabric made from 93% recycled polyester/7% spandex fleeceHeiQ Pure odour control for long wear on the moveReinforced shoulders and sleeves for durability and water resistance, made with 95% polyester/5% spandexComfortable, breathable, stretchy and packableZip-neck closure, left-chest pocket with zippered closureFitz Roy Trout logo on left chestFair trade certifiedSpecificationsFit: Regular fitClaimed weight: 428gBody: ^.9-oz Polartec Power Grid 93% recycled polyester/7% spandex grid fleece with HeiQ Pure odour controlReinforcements: 4.9-oz 95% polyester/5% spandexFair trade certifiedSize GuidePatagonia Men's Tops and Jackets Size GuideHow To Measure Your SizeBe sure to keep the tape level, and not too tight. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.CHEST: Measure the full circumference of your chest just below your armpits.WAIST: Find the top of your hip and measure the full circumference around your body.Size Chart SizeChest (cm)Waist (cm) XX-Small79 - 8366X-Small86 - 8971Small89 - 9474 - 76Medium96 - 10179 - 84Large106 - 11186 - 91X-Large117 - 12297XX-Large127 - 132102 - 107XXX-Large137 - 142117 - 122Measurements refer to body size, not garment dimensions.