When you need featherweight protection that won't slow you down, the Patagonia Houdini Jacket delivers exactly where it counts. This ultralight windbreaker weighs just 105g but punches well above its class with weather-resistant 100% recycled nylon ripstop and a packable design that's perfect for trail runners, climbers, and anyone tackling high-output adventures. The genius lies in its integrated stuffsack feature - the chest pocket transforms into its own storage pouch with a carabiner loop, so you can clip it to your harness or pack and forget about it until conditions turn. The slim fit and drop-tail hem move with your body during intense activity, while the one-pull adjustable hood provides quick coverage without blocking your peripheral vision when you're navigating technical terrain or dodging sudden weather changes.