This one supports the sleep/wake feature. It’s also very comfortable to hold, not too heavy and the sides are nice and rounded, not sharp or cold.
There are two versions of each color; one for the new 10th generation or 9th generation Oasis and one for the 9th generation only. I am very happy with this case.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1