It's nice knowing you have a closet full of gear to handle every type of weather, but what if you could have one outer layer that did the work of that entire collection That's no longer a hypothetical question, as Sportful's Fiandre Extreme Neoshell Short Sleeve Jacket provides warmth, wind resistance, and full waterproofing in a single breathable package, so you can hammer out rides in just about any weather without having to pack a quiver of outerwear. Even better, it comes with Sportful's Fiandre Extreme Arm Warmers, which let you move easily back and forth between full jacket style coverage and the breathability of short sleeves. Polartec NeoShell, which Sportful employed in both the jacket and the arm warmers, is truly a wonderfabric. It's insulating, waterproof, wind resistant, stretchy, and breathable all at once, so it's as perfect in cold and dry conditions as it is on wet and windy days. The seams are fully taped and the YKK Vislon zipper is waterproof, so no moisture can get in, and it can be worn over a light baselayer on mild days or a heavier layer when things get cold. Sportul added three classic drop in pockets and reflective details at the back, and cut the Fiandre with a trim shape that ensures effective moisture transfer and race worthy aerodynamics. The arm warmers are made of NeoShell, too, but they also feature panels of Sportful's NoRain shell, which enhances breathability while repelling water. A band of silicon gripper elastic at the top of the sleeve keeps it from sliding down, and the easy off design makes it a snap to slide them down or up if you need to adjust your temperature.