Reliable rain protection for workdays when the weather isn't quite so kind; the Hosby 2.5L Bike Jacket offers cycling-specific details and sustainable breathability. Thanks to its construction, the Hosby 2.5L Bike Jacket prepares you perfectly for adverse weather conditions: Thanks to its PU membrane, the jacket is waterproof, windproof, and breathable. This allows moisture to pass through the membrane from the inside to the outside. In addition to breathability, the cycling jacket has covered ventilation openings on the back. This ensures regulated, moderate air exchange.