EXTRA 20% Off Clearance
3 days only | Ends 8/17
Now Up To 60% Off
Shop Semi-Annual Sale
Summit Club+ Exclusive
15% back on hike, camp & climb
Temporarily Out Of Stock
Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.
Can't wait? Consider one of the other Women's Triathlon One-Piece we have in stock.
View Similar ProductsCore Tri W Suit delivers aerodynamic comfort and versatility for entry-level triathletes
What Our Gearhead® Experts Are Saying:
"The Core Tri W Suit is a fantastic choice for beginner triathletes. It’s comfortable and aerodynamic, with a KISS Tri pad that works great for both the bike and run. The rear pockets are a handy bonus for keeping nutrition within reach."
For athletes starting their triathlon journey, the Core Tri W Suit offers comfort, versatility, and performance at an approachable price. Made with lightweight, breathable fabric, this suit keeps us cool and comfortable through all three legs of the race. Raw-cut edges on the sleeves and legs reduce drag, enhancing aerodynamics while providing a smooth, irritation-free fit.
The KISS Tri seat pad delivers just the right amount of cushioning for the bike leg without feeling intrusive during the run, ensuring seamless transitions between disciplines. Two rear pockets store essential nutrition, while the 3/4-length YKK® front zipper makes it easy to regulate temperature. With a tailored fit and thoughtful features, the Core Tri W Suit is built to support us from the swim to the finish line.
Details
- Entry-level triathlon suit designed for aerodynamic comfort
- Lightweight, breathable fabric ensures comfort across all three disciplines
- Raw-cut edges on sleeves and legs reduce drag and eliminate chafing
- KISS Tri seat pad provides bike support and remains unobtrusive on the run
- 3/4-length YKK® front zip allows easy temperature regulation mid-race
- Two rear pockets store nutrition without creating drag in the water
- GIRO4 flat leg grippers keep the suit in place for a secure fit
- Ideal for triathlons, training sessions, and beginner athletes
- Item #CSTZ7WY
- Season
- 3-season
- Fit
- form-fitting
- Chamois
- KISS Tri
- Pockets
- 2 rear
- Manufacturer Warranty
- 2 years
- Leg Gripper
- GIRO4
- Activity
- triathlon

Disruptive Innovation Since 1876
Castelli traces its roots back to a fine tailor in the heart of Milan, founded in 1876. Today, Castelli's relentless pursuit of excellence creates disruptive innovation in the cycling community.