Go By Bike
Planet Earth is our home and our responsibility – we must do our part to preserve it. Learn how you can join the #GoByBike movement and help make a difference in the future of our planet and all who call it home.
Read moreHow-to content
Wondering how to properly fit that new helmet you just got? Need some tips on how to ride with your kids? How about ways to be more visible to cars? We've got that and a whole load more!
Learn moreCulture
Trek culture is who we are, what matters to us and what we do as a brand. Take a look behind the scenes at Trek’s global headquarters.
Read moreResponsibility
There's a lot more to Trek than making the world's best bikes and cycling gear. Learn more about everything Trek is doing to make the cycling space safer and more inclusive, plus a whole lot more fun.
Read moreProduct features
Made with love for you and the planet
Circuit Windshell Vest main body fabrics contain at least 35% recycled material.
Protection in the front – breathability in back
A wind-blocking front panel protects your core from the cold while a full mesh rear panel offers excellent breathability.
Easy-access essential storage
A two-way YKK zip allows easy access to jersey pockets without disrobing.
Pack 'n' go
The ultra-light design easily packs into a jersey pocket if you need to shed a layer mid-ride.
How to care for your vest
Caring for your vest will prolong its life, keep you fresh and help eliminate odours so your ride partners stay happy. Wash in cold water on a gentle cycle and hang to dry.
30-Day Unconditional Guarantee
If for any reason you’re not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
Learn more| Gender | Men |
|---|---|
| Fit profile | Semi-fitted |
| Temperature use (high) | 29 °C |
| Temperature use (low) | 10 °C |
| Fibre content | Face: 90% Nylon / 10% Spandex, Back: 92% Recycled Nylon / 8% Spandex |
| Material | Woven |
| Origin | Imported |