Rare L.A.M.B Gwen Stefani One size, but probably goes up to a 10-12 buttoned, larger if left open. Wool Tweed 50s Retro Swing Cape Jacket Coat Very rare LAMB by Gwen Stefani Cape 100% wool; lined. Neck can be worn down or up like a turtleneck. No sleeves but there are arm holes. Extra large fabric button front closure. Retro 50s & 60s style. LAMB embroidered on the back.