Plaid, or tartan as the pattern is known in the British Isles, emerged on woollen textiles in 1700s Scotland, but would go on to become a quintessential part of North American workwear, often found in plaid overshirts. Here, Ralph Lauren Purple Label takes from both of those points of influence, crafting a plaid overshirt from an insulating blend of silk and cashmere. Wool/Silk/Cashmere. Colour: brown