The custom cover fits perfect! I am more than happy, actually overjoyed. I ordered a custom made Boxed Seat Snug Fit Round Armchair Slipcover - boxed seat cushion fixed and not loose. Difficult one. I’ve had the armchair for many years, so comfortable, firm upholstery, but the cover was completely outdated and worn out. Could not bear to throw it out - also fed up with the look of my livingroom. Furthermore, I had too many different seats and sofas with different covers. And I wanted to eliminate creating waste. Comfort works covers were my solution. With my cat, I decided for a light modern taupe color: paw-proof velvet cream: Great quality. Simon was fast, very helpful and super professional with his directives on how I need to measure. Other IKEA seats of course were perfect. Goes without saying. 100% recommended!