Mammut Men's Duncan FL T-Shirt Size:XL The set screw has a

The set screw has a 4mm hex drive

MIDSOLE: Sugarcane EVA midsole

This is the shell we always wanted: one that performs like a top-tier alpine jacket but fits and looks the way we actually ski

Greg's Take: The Rustler doesn't hold up the best on firm snow at high speeds

Multiple options for securing poles

Mammut Men's Duncan FL T-Shirt Size:XL The set screw has a### Mammut Says ### When you want to turn up the intensity, this technical first layer has your back. Moisture wicking, quick drying 100% recycled polyester helps you feel airy and cool throughout the day no matter how sweaty the challenge. And long lasting bio based HeiQ Fresh treatment reduces odors. For serious days in the mountains, the Ducan FL T Shirt delivers reliable performance.