A lightweight membrane softshell fabric which itself is waterproof to a 10,000mm hydrostatic head.
The garment itself is not seam taped so therefore not classed as fully waterproof. The membrane is breathable.
Like other softshells and unlike hard shells, this fabric is rustle free and has a comfortable knitted inner face which is soft and wicking next to the skin.
A DWR means it will bead light rain, it is also very fast drying.