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.
FOAMMA 5 x 38 x 42 Medium Density Upholstery Foam
Hastings Home Memory Foam Chair Cushion Charcoal
4 Inch Cushion Foam
FoamRush 2 x 12 x 12 Cool Gel Memory Foam
About our foam: We combined a layer of ventilated gel memory foam and a layer of high density support foam for pressure relief and support with a
FoamRush 4 x 12 x 12 Cool Gel Memory Foam Upholstery Square Cushion Medium Firm (Chair Cushion, Square Foam Dining Chairs, Couch, Sofa, Wheelchair
FoamTouch (5 Pack) Upholstery Foam Cushion High Density 10
GenuineFoam Upholestry Foam 1'' x 24'' x 120'' High Density
FoamRush 2 x 20 x 20 Cool Gel Memory Foam
ABOUT OUR FOAM: Our foam is certified for the highest quality. Our foam features are Density:1.8 Compression:44 ILD, with a 100% recovery rate
FoamRush 2 H x 26 W x 32 L Upholstery Foam High Density Firm Foam Soft Support (Chair Cushion Square Foam for Dining Chairs, Wheelchair Seat