Lastu II Men's DrymaxX 2,5L Shell JacketDescription Lightweight and waterproof shell jacket for versatile use. This jacket can fit in small spaces and is ideal for packing in a bike bag or camping bag, and it is easy to put on over a mid layer jacket for waterproof protection, for example. The jacket has mechanical ventilation holes under the arms and at the back to maximize airflow in warmer conditions. The Lastu jacket is made of waterproof and windproof DrymaxX material, which is made of