95% Feathers.
If you’re looking for a true down duvet, this isn’t it. Website description failed to disclose actual down content.  This is 96% Feathers / 5% down. Because it’s actually a feather duvet, it is heavy—not the cloud like luxury/ efficacy of down.
The construction is solid, but easily wrinkles, as shown in photo. In my opinion, you can find better.