High density foam has a compression rate of 44lbs. It features the perfect amount of cushioning and stiffness. Its soft but still holds its firmness and support for an individual to sit on it without compressing the foam too much. Compression = firmness compression (not density) is what determines firmness. If you dont want a cushion thats hard as a rock or a mattress that sinks when you sit on it, you have to check the compression or ild number.
24 X 24 Seat Cushion Foam With Batting/ Dacron cushion Seat Replacement Made in USA All Sizes 1 6
FoamRush 6 x 24 x 27 Upholstery Foam High Density Firm Foam
Buy Espiraio Seat Cushion, Super Soft Comfortable Round Cushion
Replacement Couch Cushions
Firm Sofa Cushion Replacement
FoamTouch Upholstery Foam Cushion High Density
Easy-Going Stretch Chair Cushion Cover Sofa Cushion
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24 X 70 High Density Upholstery Foam Cushion chair Cushion Square Foam for Dining Chairs, Wheelchair Seat Cushion Replacement - Hong Kong
Buy Espiraio Seat Cushion, Super Soft Comfortable Round Cushion