If your weather app is telling you to expect cool winds and rain showers, but you'll still be heading to the trails, the Elements Shell Jacket should be top of your mountain biking kit list. Should those rain showers materialise, it's Oakley's FN Dry technology that will prevent water from getting inside. At the same time, FN Dry also allows moisture to escape - vital for comfort when you're facing sweat-inducing climbs and the intensity of downhill trails. Weighing in at just 130 grams, the Elements jacket definitely won't weigh you down. And with the trail-fit you've also got space to move easily - particularly useful when you're riding on wet and slippery trails. The drop tail hem provides coverage across the lower back and a helmet-compatible hood adds extra protection in heavier downpours.