FORTEM Office Chair Cushion Memory Foam Seat Cushion (XL) with Non-Slip Base and Washable Cover

What it is and what it’s for

If you spend long spells in an office chair, gaming chair, or even on trips in the car, a seat cushion can make the difference between “it’s fine” and “I feel better after sitting”. The FORTEM Office Chair Cushion is a memory foam seat pad designed to add comfort (and, on some chairs, a bit of height) while keeping you supported as you move around.

On paper, the idea is straightforward: memory foam moulds around you for a softer feel, while the ergonomic “U” shaped hollow design is meant to improve comfort in the seating area. It’s not trying to replace a chair that’s fundamentally uncomfortable, it’s more of a comfort layer for day-to-day sitting.

Key benefits you’ll notice in use

The most practical win here is the non-slip base. The rubber bottom is intended to help the cushion stay put, even if you shift posture during work or gaming. That matters more than people think—nothing ruins a session like a pad creeping forward or bunching slightly.

The other convenience feature is the washable cover. The design is described as machine-washable via an unzip-and-wash approach, which is handy if you use it in different rooms (office, bedroom, kitchen) or if it’s going to be shared.

And there’s a built-in handle for carrying. That’s a small touch, but it makes a cushion feel more “take it with you” than a fixed add-on.

Comfort and fit: where the XL size may help

This version is labelled as XL, so it’s aimed at people who want more surface coverage. It can also be useful if you’re using it as a seat riser cushion on chairs where your posture tends to sit too low.

A quick limitation to keep in mind: without your chair’s seat dimensions and your own preferences, it’s hard to predict exactly how much extra height and how well the XL shape will sit on your particular chair. If you already have a good chair fit, you might find the cushion adds comfort but not a dramatic transformation.

Non-slip and washable: what to check before buying

The non-slip rubber bottom sounds ideal, but you should still consider how you’ll use it. For example, on very smooth or unusual seat materials, any pad can still move a little depending on movement patterns.

Also, the washable cover is convenient, but you’ll want to double-check that you’re comfortable with unzipping and washing periodically as part of your routine. If you’re after a “set and forget” solution with zero maintenance, this may feel like more effort than you’d like.

Who it suits (and who might want to skip it)

It makes sense if you’re looking for a budget-friendly comfort layer for long sitting, whether that’s at a computer desk, during gaming, or in a car seat for short to medium trips. It’s also framed as versatile enough for bleachers and travel scenarios.

It’s probably not the best choice if your chair has major support issues (for instance, you need lumbar correction or a different seat angle). A cushion can improve feel, but it won’t fix poor posture mechanics in the way a correctly adjusted chair might.

It’s a solid “works across contexts” pick if you’re planning to move it between spaces—office, dorm-style setups, bedrooms—rather than treating it as a single-chair accessory.

The essentials in practice: a micro use-case

Imagine you’re working from home and after a couple of hours your hips and thighs feel tired. You place the memory foam cushion on the chair seat, making sure the non-slip base sits flat. Once it’s in position, you can shift around and expect it to hold more reliably than a plain fabric pad. Later, if it gets marked or just needs refreshing, you unzip the cover and wash it rather than having to replace the whole cushion.

Is it worth it?

Final verdict

Worth considering if you want a memory foam seat cushion with a non-slip bottom, a washable cover, and an XL size that offers more seating area—especially if you regularly sit at a desk, game for sessions, or use the same cushion across different chairs and rooms.

You may want to skip it if you need a more structural seating solution than a comfort layer can offer, or if you dislike removable covers and washing as part of ownership. It’s more of an “add comfort where the chair falls short” product than a replacement for proper ergonomic setup.

Quick FAQ

Can I wash the cover?

Yes—according to the description, the cover is machine-washable and you can unzip it for cleaning.

Will it stay in place while I move?

The cushion is designed with a non-slip rubber bottom to help it stay put when you shift position.

What chairs can I use it on?

It’s described for multiple settings such as office chairs, car seats, gaming chairs, and bleachers.

Is the XL size meant to add height?

It’s described as a seat riser cushion for added height and comfort, but the exact effect depends on your chair and how you sit.