I bought two different model seat cushions at the same time due to the good reputation of The White Willow.
This Sprucesoft model I use at the office on my work chair, and its specific shape is comfy and helps to support my skinny rear.
In any case, you should take a break every hour to get off your tailbone and give your eyes some rest from work.
Tip: make sure to place your seat cushion facing the correct direction, and use double tape to secure it to your work chair.

I ordered this when I started having some hip and Glute pain as I had to give a 3 hour exam but unfortunately it didn't come on time so I ordered another brand as well however that was not as comfortable as White Willow so I returned that and kept this. It was a life saver as I was admitted to hospital few days later and would not have been able to sit in the car or wheel chairs without this. I now find all chairs uncomfortable without this pillow. The only negative is the width of the pillow is a bit small so it slides back in the office chair. Bigger will fit the entire chair till the front and make it more comfortable.

Very good quality. Highly recommended for people who have to sit for long hours.

Used poor quality foam

I ordered below 50kgs by mistake but I emailed for replacement and it got above 50 kgs within few days. Good support and good product.

I bought two different model seat cushions at the same time due to the good reputation of The White Willow.
This Sprucesoft model I use at the office on my work chair, and its specific shape is comfy and helps to support my skinny rear.
In any case, you should take a break every hour to get off your tailbone and give your eyes some rest from work.
Tip: make sure to place your seat cushion facing the correct direction, and use double tape to secure it to your work chair.

I ordered this when I started having some hip and Glute pain as I had to give a 3 hour exam but unfortunately it didn't come on time so I ordered another brand as well however that was not as comfortable as White Willow so I returned that and kept this. It was a life saver as I was admitted to hospital few days later and would not have been able to sit in the car or wheel chairs without this. I now find all chairs uncomfortable without this pillow. The only negative is the width of the pillow is a bit small so it slides back in the office chair. Bigger will fit the entire chair till the front and make it more comfortable.

Very good quality. Highly recommended for people who have to sit for long hours.

Used poor quality foam

I ordered below 50kgs by mistake but I emailed for replacement and it got above 50 kgs within few days. Good support and good product.