Trek's most versatile bib short ever
The Circuit Cycling Bib Short is one that everyone should keep in their cycling wardrobe. Circuit is ultra-versatile and is built with lightweight, breathable main materials for an optimal balance of compression and breathability. The form-fitting dual-density Elite inForm Chamois provides comfort for miles with guaranteed smiles.
Great for rides up to 2.5 Hours / 35 Miles / 56 KM
Made with love for you and the planet
The Circuit Short is a bluesign product that's been STANDARD 100 tested by OEKO-TEX.
Elite inForm chamois
This form-fitting, dual-density pad provides an optimal balance of performance and comfort for rides up to 2.5 hours.
High-elasticity materials prolong the life of the straps, and a low-profile design provides a seamless fit.
Raw-edge leg opening
A raw edge cuffed leg opening offers a comfortable, more flattering fit around the legs.
Get a grip
Low-profile silicone-printed leg grippers keep your shorts in place while you're pedaling hard.
Circuit fabrics are built to help you shine while reducing your exposure risk by offering UV50+ protection.
Men's Fitted Profile
The most versatile, eco-conscious bike short with the added support of bibs, designed for riders seeking all-day comfort.
bluesign product and STANDARD 100 by OEKO-TEX tested
Elite inForm Chamois—Form-fitting, dual-density pad with optimal balance of performance and comfort
Lightweight, breathable fabric balances compression and comfort
Low-profile bib straps with high elasticity prolongs the life of the shorts
Raw edge cuffed leg opening offers a comfortable, more flattering fit around legs
Low-profile silicone leg grippers keep shorts secure
UV protection 50+
Fitted cut provides a streamlined body fit for enhanced performance
How to care for your shorts
Caring for your shorts will prolong their life, keep you fresh, and help eliminate odors to keep your ride partners happy. Wash in cold water on a gentle cycle and hang to dry.
|X-Small||33.1" - 35.0"||26.8" - 29.1"||33.1" - 35.0"|
|Small||35.0" - 37.0"||29.1" - 31.1"||35.0" - 37.0"|
|Medium||37.8" - 40.2"||31.9" - 33.1"||37.8" - 40.2"|
|Large||40.9" - 42.9"||35.0" - 37.0"||40.9" - 42.9"|
|X-Large||44.1" - 46.1"||38.2" - 40.9"||44.1" - 46.1"|
|XX-Large||46.9" - 48.8"||41.7" - 44.9"||46.9" - 48.8"|
|XXX-Large||50.0" - 52.0"||44.9" - 48.0"||50.0" - 52.0"|
|Deep Dark Blue / Small||601842413401||1046418||SHO499101052|
|Deep Dark Blue / Medium||601842413418||1046420||SHO493544092|
|Deep Dark Blue / Large||601842413425||1046421||SHO495060502|
|Deep Dark Blue / X-Large||601842413432||1046422||SHO491128752|
|Deep Dark Blue / XX-Large||601842413449||1046423||SHO502615032|
|Black / Small||601842413340||1046412||SHO422762312|
|Black / Large||601842413364||1046414||SHO425247332|
|Black / X-Large||601842413371||1046415||SHO424519112|
|Black / XX-Large||601842413388||1046416||SHO439773882|