Made of 11oz brown oilskin and lined with polar Fleece. The shoulders are peaked to give cover to shoulders but easy arm movement. Pockets are in the side seams to keep the front of the vest clean to help prevent items getting caught and possible damaging the vest. Two top pockets for a diary, cellphone etc. The zip is a heavy duty plastic YKK. Sizes are xs, small, medium, large, xl to 7xl.