Madrone DK is a blend of 80% Merino, 20% Yak, and 20% Silk. This very soft with a silky feeling and has a lovely sheen. Madrone starts out as a medium-light grey brown (from the Yak) and this gives a depth and muted-ness to the dyes. A lovely yarn! Skeins are 280 yards and 4 oz.