Activities
The original Swix baselayer – trusted by generations
The RaceX Classic Half Zip is the iconic Swix baselayer, trusted by athletes for years. Designed for performance, it delivers stretch, breathability and fast-drying comfort – whether you’re training hard or layering up. The slim fit moves with you, and the half-zip lets you control ventilation when intensity shifts. Made from 70% REPREVE® recycled polyester sourced from ocean-bound plastic bottles, this top is as responsible as it is high-performing. A true essential from Swix super underwear – built for activity, trusted for comfort.
- Polyester Repreve®
- Quick-Drying
- Moisture-Wicking Fabric
- Flatlock Seams
- Half Zip
- YKK Zipper
- Printed Logo