The Ultimate Direction Fastpacker 30 2.0 is a running vest designed specifically for women in size XS or small. With a capacity of 30 liters, this hydration pack is ideal for trail running and jogging. The color of the vest is Fog, offering a sleek and stylish look for outdoor activities. Perfect for carrying essentials on long runs, the Ultimate Direction Fastpacker 30 2.0 is a reliable choice for female athletes looking for comfort and functionality.