Masters of lightweight bags and apparel with a focus on the bicyclist, San Francisco’s Mission Workshop has really outdone itself with the latest edition to its advanced projects line. Certainly one of the lightest waterproof jackets in the world, the triple layer Sans Microlight Rain Shell weighs in at just 5.6 ounces. In terms of quality and functionality, however, Mission Workshop insists that this jacket is anything but lightweight.

Composed of a proprietary comfort-stretch Japanese fabric called Entrant, this jacket is incredibly waterproof and windproof, but boasts a breathability that allows both air and moisture to escape. Add in a pair of Laser-drilled underarm ventilation holes, and you have something entirely new in the world of raingear, a jacket that offers supreme protection and supreme comfort in a highly stylish package. To sweeten the deal, the Mission Workshop promises supreme durability and backs that promise up with a lifetime guarantee.