The santini eroica tweed technical vest has a tweed fabric front and shoulders with a membrane to offer increased comfort with a polyamide fabric on the back this santini gilet also features a double fronted pocked with a zip closure for added security as part of the eroica range it brings an authenticity to its design that will take you back in time santini eroica tweed technical vest polyamide fabric on the sleeves and back front and shoulders in tweed fabric with membrane double fron