seat cushions

Kensington Memory Foam Seat Cushion with Non-Slip Base

$39.99 ★ 4.5 (18,960) Prime eligible
Nate Frost

By Nate Frost · Senior Editor

Published May 13, 2026 · Last reviewed May 13, 2026

Kensington Memory Foam Cushion — Worth It Before Buying a New Chair?

Before spending $300+ on a new ergonomic chair, a $40 memory foam cushion is worth testing first. The Kensington cushion addresses the most common chair failure: inadequate seat padding.

What it fixes

Most office chairs soften and bottom out after 12–18 months of heavy use. The Kensington adds 3” of density-graded memory foam that distributes sit-bone pressure across a wider area. In our testing, it measurably reduced reported discomfort in 2-hour sessions on a 3-year-old task chair.

What it doesn’t fix

A cushion cannot fix bad lumbar support, wrong seat height, or arm position issues. If your pain is in your upper or lower back, the problem is postural — address the chair’s adjustment range, not just the seat surface.

The coccyx cutout matters

The Kensington’s coccyx relief channel effectively reduces tailbone pressure for users who experience that specific pain point. This alone is worth the price for post-injury recovery seating.

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Reviewed by Nate Frost . Last checked: 5/13/2026. Prices and availability change. We earn a commission on qualifying purchases. How we research →