Castelli T1:Stealth Top - Women's 5040-431

Castelli T1:Stealth Top - Women's

Size Guide

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Show Description

Like a thief in the night, this sly speed top slips through the wind, dropping minutes off your time for the bike portion of your tri. With Castelli’s wind tunnel-tested Velocity fabric on the front, and breathable and lightweight Velocity mesh on the back and shoulders, it’s a top that dries quick, fits aero, and cheats the wind at every turn.

  • Front fabric is quick-drying polyester and elastane with a breathable mesh on the shoulders and back.
  • Bottom, torso and neck are lightweight nylon and elastane.
  • YKK full-length Camlock zipper for easy venting.
  • Silicone gripper elastic at waist keeps you covered.
  • Sun protection of UPF 16+.
  • Fabric is wind tunnel tested to confirm a 3-minute advantage on a 5-hour Ironman bike leg.

Tech specs

Show Tech specs
Ideal for Bike triathlon
Fabric content
  • 86% polyester
  • 14% spandex
Secondary fabric
  • 95% polyester
  • 5% spandex
Antimicrobial treatment

A treatment that inhibits bacteria growth and reduces odour.

UPF rating

The Ultraviolet Protection Factor rating indicates how effective a fabric is at blocking out solar ultraviolet radiation.

15-24 (Blocks ~93% of UVA/UVB)
Made in Hungary