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Castelli Men's Free Tri Short

Mfg PartNum:
In Stock Now
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Free Speed, Free Comfort, Freedom.

Setting out to make your next triathlon easier and more comfortable, Castelli's Free Tri Short combines a great anatomic fit with quick-dry technical fabrics. With its Hydrophobic Speed fabric, the Free Tri Short is fast in the swim with minimal water absorption, and quick-to-dry for a comfortable ride and run.

Inside this triathlon short, the Kiss Tri seat pad offers just what you need for the ride, while disappearing on the run. With its SnapLock fastener located at the lower back, the shorts clip to compatible jerseys to prevent riding up or falling down during the swim or bike leg. Flatlock stitching and a drawcord waist keep you comfortable by minimizing any zippers or seams that can cause irritation while on the move.

Elevate your adventures with the Castelli Men's Free Tri Short. High-quality Giro Air gripper elastic along the leg keeps these shorts in place, so you don't have to struggle with continually readjusting. Complete with two small pockets on the hip that can hold your keys or nutrition, you're set to enjoy the day with the things you love most.


  • Hydrophobic Speed fabric is fast in the swim and doesn't absorb water
  • Free construction for great anatomic fit
  • KISS Tri seat pad is comfortable on the bike and disappears on the run
  • SnapLock fastener at waist to clip jersey into place for swim and bike
  • Flat-lock stitching
  • 2 small pockets on hip for nutrition during run
  • Drawcord waist
  • Giro Air gripper elastic for more comfort
  • Performance fit: Castelli apparel is designed with a performance cut that often runs smaller than that of other manufacturers. Consider sizing-up one size to ensure a comfortable fit — e.g., if you typically wear a Medium, select a Large in Castelli.

    Feel free to contact us with any questions or concerns.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Style Type: Shorts 

Fabric: Hydrophobic Speed fabric 

Chamois: KISS Tri seat pad 

Discipline: Triathlon 

Pockets: 2 side nutrition pockets 

Fit: Form Fit 

Black - Small

Mfg PartNum: T18107010-2 

Black - Medium

Mfg PartNum: T18107010-3 

Black - Large

Mfg PartNum: T18107010-4 

Black - X-Large

Mfg PartNum: T18107010-5 

Black - 2X-Large

Mfg PartNum: T18107010-6 

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*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Sat). Orders over $50
are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 05


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