The sky is blue but the race director has dictated you must carry a waterproof. Well, the weather conditions are more likely to change than the race director so its just as well you've packed your ultralight Inov-8 Men's AT/C Stormshell. At just 150 grams this won't be slowing you down, yet its high waterproof rating will ensure you are properly dry if the rain does come down. With its half zip on the chest, its easy to whip out and put on, even on the run. What's more, the fantastic breathability will keep your perspiration moving on out and away from you so you'll not feel clammy. The rollaway hood has a wired peak to help retain its form as you chase into the wind.