Can they be washed? Is the outer fabric removable?

Dear Customer, We recommend Lightly spot clean, Gentle machine wash or Hand wash the cushion with mild detergent and cool water. And the outer fabric can not remove. Welcome and thanks for purchasing from Tiita on Amazon. Have a nice day! Tiita Customer Service Team.

are the cushions really squishy?

The cushions are firm and thick, comfortable enough that you don't sink all the way to the bottom. We found them soft enough to sit in for long periods if time.

Anymore of the black cushions?

Dear Customer, The black cushion will be in stock. The cushion is on the way to the Amazon warehouse. Arrived around May 20th. If you like a black cushion, we suggest you buy the square cushion "B08BC8K7R8". Or wait until May 20th to buy the black round cushion. Welcome and thanks for purchasing from Tiita on Amazon. Have a nice day! Tiita Customer Service Team.

When will you have black round pillow in stock?

Dear Customer, The black round cushions are in stock. Here is the link"https://www.amazon.com/dp/B08BCGBN4K/ref=twister_B08BNMB5JG?_encoding=UTF8&psc=1" Thank you very much for your love of our products. Welcome and thanks for purchasing from Tiita on Amazon. Have a nice day! Tiita Customer ServiceTeam.