Rab mens downpour pants black the mens downpour pants are our lightest weight waterproof pants perfect for all round protection manufactured using pertex shield 25 layer fabric with dry touch these waterproof pants will keep you dry whether caught out by a light shower or a torrential downpour knee length zips with storm flaps allow ease of use with big boots while other essential features such as knee articulation add comfort and practicality to these lightweight and highly packable