Precision-engineered for the run.

The FSTCapEthereal silhouette pushes technical performance with stretch TERRAstop ripstop woven fabric that forms to your head. Carbon-embedded knits enhance moisture management, odor resistance, and durability, keeping you fresh through every mile.

Lightweight yet structured, this cap is built for endurance, with aerodynamic shaping and strategic ventilation for ultimate breathability. Designed for those who demand more from their gear, because every detail counts.

Product Highlights

• TERRAstop ripstop ™ stretch woven fabric.
• COOLmatic | EXP HOLLOWmesh™ knit with integrated carbon yarn for temperature control on sides.
• COOLmatic | PLUS PROPHORmesh™.
• VITE adjustment closure.
• ETHERfit brim with HOLLOWphorm.
• Machine washable.
• Reflective detailing for night run visibility.
• Ciele athletics™ million miles guarantee.

Product Deatils

• S/M 56.5 cm +-.
• Weight 37 grams.
• Designed for people who run.
• Main fabric: 85% nylon 15% spandex.
• Secondary fabric: 86% recycled polyester, 10% elastane, 3% polyester, 1% carbon