Not not too bulky to fit into street shoes. The wonderful qualities that Possum Merino Wool have make them a winner in our book. They are a warm, soft, sustainable, natural fibre sock. Ideal for cold climates, but as a hollow fibre Possum is so thermally efficient these socks can comfortably be worn in all sorts of weather. We are very proud to be bringing to you Australian Merino blended Possum Socks.