Castelli Aria Vest GiletThe rest of your Castelli kit is streamlined and not too is your core windproof protection. The Castelli Aria Vest Gilet boasts a windproof front and slippery aerodynamics so you'll always enjoy fast and efficient cycling when cold winds blow. The front of the Aria Gilet is completely windproof, preventing any loss of warmth via windchill. Meanwhile, the Striped mesh back fabric provides outstanding breathability so you don't get too hot and sweaty. And both materials are super-light meaning you'll barely feel the vest once it's on.However, it's not just the core windproof protection you'll love. The fit is brilliant too. Gone is a flappy, loose garment and in its place is a streamlined and stretchy fit that won't slow you down when cycling. Thanks to the stretch you still enjoy full mobility too. And when you're ready to take it off, it folds into its own pack pocket, taking up minimal space in your jersey pocket.Features:Materials: 100% PolyamideUltralight windproof woven microfiber frontStriped mesh back is stretchy to avoid fabric flapping in the windFolds up extremely smallRear pocketYKK® Vislon® zipperReflective pipingSuggested temperature range: 12 to 20 Degrees CBuy Castelli Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.