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Fly Thermal Bike Jacket

Item: 601323
By: Castelli


Imagine a puffy jacket so light, warm and streamlined you forget you’re even wearing it. The new Fly Thermal is just that jacket. Using FLY Fabric Technologies (FFT), Castelli constructed this latest innovation from the inside out to be environmentally friendly and impossibly light while still protecting you from the elements that challenge your ride. Breathable GORE-TEX INFINIUM™ WINDSTOPPER has an unparalleled ability to block wind and pull moisture away from the body. Inside you'll find the lightest, warmest, and most breathable insulation made from 100% recycled materials. Finally, the FLY SL shell is again made from 100% recycled material that blocks wind and is treated to shed water and protect you from light rain and road spray. For added protection, there's a packable hood with a quick Velcro tab that easily unrolls when you need it and fits snuggly under a helmet to keep any unwanted air out. Like any good cycling jacket, it’s finished with plenty of pockets, a gripper at the hem to keep the jacket securely in place, and reflective tabs for added safety while out on the road.

Product Details

• front/back: 100% polyamide lining: 100% recycled polyester sleeves/hood: 86% polyamide/14% elastane cuffs: 70% polyamide/30% elastane rear bottom: 80% polyamide/20% elastane
• windproof and breathable GTX Infinium WINDSTOPPER inner lining
• 100% recycled post-consumer CLIMA SL Insulation for extra warmth
• 100% recycled post-consumer FLY SL Shell for wind and light rain protection
• two-way front zipper
• packable hood with Velcro rollaway tab
• reflective tabs increase visibility
• 5 pockets; 3 open rear pockets and 2 zippered front hand pockets

Fit Notes


See our guides to fit and rise, and sizing tips and info.

Product Care

To get the most out of your performance wear, we suggest that you wash on delicate cycle using cool temps, mild detergent, with like colors. Line dry if possible or on low heat in your dryer. Don't iron or dry clean.