Berlin-based running label Optimistic Runners returns for this season, after its debut with us. It's a label that focuses on clean lines and technical construction, enabling runners to look and feel their best during athletic pursuits.

The Membrane Jacket is a packable design crafted from a lightweight and breathable polyester with a waterproof membrane—ideal for unpredictable conditions. It features zippered underarm vents for enhanced airflow, while an adjustable hood and hem allow you to get the perfect fit.

It packs away into the internal pocket for easy storage.

• 100% Polyester w/ waterproof membrane
• Front-zip fastening
• Adjustable hood
• Adjustable hem
• Thumb holes 
• Zip hand pockets
• Zippered underarm vents
• Inner pocket
• Reflective accents
• SKU: PMJ26BG