Extend your range without loading down your pack. This adidas Terrex jacket is a lightweight layer that lets you push into the alpine or cover up as the weather changes. WIND.RDY blocks the wind and repels light showers to keep you warm and dry on the trail. It's cut with backpack-friendly seams and extra coverage at the back hem. Mesh underarm vents keep the air flowing during strenuous efforts, and it stows into a pocket for easy storage in a trail vest or pack.