About the Jack Wolfskin Men's Gecko Fleece:
The Jack Wolfskin Men's Gecko Fleece is warm, packable and weighs next to nothing. And because the fleece is produced from recycled PET bottles, it’s good for the environment too. You can wear this robust fleece pullover as a mid layer in a technical layering system or slip it on over your base layer for a little extra warmth during rest breaks on the trail. When it comes to versatility, the GECKO is pretty hard to beat.