OMM describe the KamLite Smock as: \"The Kamlite Smock makes the most of the latest fabric technologies and maps them to the runner s body to achieve the optimum combination of protection breathability and weight saving. Designed to focus on those moving quickly in wet conditions the KamLite maximises comfort for the user while protecting against the elements and minimising weight. Venting is through the deep two-way zip on the front and thumb loops help to extend the jacket over gloves for additional protection.\" LEANWEIGHT: 150g  BREATHABILITY 10,000/20,000 g/m2 HYDROSTATIC HEAD 10,000/20,000 mm Features Active cut with minimal seam construction Fully adjustable wired & laminated mountain hood YKK Aquaguard zip Extended cuff & thumb slots Dynamic Droptail Face Gusset Reflective logos and print Technical Details Body mapped Kamleika 4 Way stretch with Nylon PointZero H20 Fabric Soft and quiet face fabric Waterproof & breathable Colours: Black/Grey, Multi Sizes: XS / S / M / L / XL