The Sidney shares its name with a host of esteemed gentleman, including the founder ofs The Sidney shares its name with a host of esteemed gentleman, including the founder of’s grandpa. Sustainable and stylish, the cushion is crafted from British lambswool and made to the right size and distortion to avoid waste. Beautifully unique, its blue checkerboard design is created using a knit process that often results in small gaps and quirks, for a finish that oozes handmade charm.