195 thread count, 100% cambric cotton, down-proof cover. Fill consists of 95% grey duck feathers, 5% down. All down is sourced from an RDS Certified supplier—Responsible Down Standard ensures that down and feathers come from ducks and geese that have been ethically raised. RDS standards ensure that animals live healthy lives and do not suffer pain, fear, or distress. Insert features a baffle-block construction, which helps keep down fill in place and evenly distributed.