- Rear cutout provides maximum pressure relief for the coccyx
- Slow recovery Soft T-Foam™ for pressure distribution
- Combination convex base and wedge cushion provides a superior sitting platform and promotes proper posture
- Removable, water-resistant cover with nonskid bottom
AliMed® Sit-Straight™ Coccyx Wheelchair Cushion with T-Foam™
AliMed® Sit-Straight™ Coccyx Wheelchair Cushion with T-Foam™
SKU:2970000178
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- Rear cutout provides maximum pressure relief for the coccyx
- Slow recovery Soft T-Foam™ for pressure distribution
- Combination convex base and wedge cushion provides a superior sitting platform and promotes proper posture
- Removable, water-resistant cover with nonskid bottom






Size Chart
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Product Highlights
Brand: AliMed
TAA Compliant
This product can expose you to chemicals including DI(2-ETHYLHEXYL) PHTHALATE (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Product Description
AliMed® Sit-Straight™ Coccyx Wheelchair Cushion with T-Foam™ provides maximum pressure relief for the coccyx area. Combines all the benefits of our Sit-Straight™ Cushion with a top layer of slow recovery Soft T-Foam™ (memory foam) that has a rear cutout for pressure redistribution, comfort, and conformity. Integrated wedge and Solid Seat Insert™ base provide a superior sitting platform. Removable cover with nonslip vinyl bottom is fully launderable with rear ties for security. Available in water-resistant Black cover or Ocean Blue Polyknit cover and two widths: 16" or 18".
16"D • 9"W x 6"D cutout at coccyx • 3"H tapers to 2"H rear • Firm Polyfoam with soft T-Foam top layer
Suggested code: E2601
AliMed® Sit-Straight™ Cushions combine a Solid Seat Insert™ base with a wedge cushion to discourage harmful sacral sitting. The convex base design counteracts the negative effects of a sagging sling seat by filling the sag without modifying the wheelchair or raising the surface’s height. The wedge top limits forward sliding and maintains hips at 90° for optimal postural support. The end result is proper sitting posture, improved sitting tolerance, and functional independence.
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AliMed® Sit-Straight™ Coccyx Wheelchair Cushion with T-Foam™ provides maximum pressure relief for the coccyx area. Combines all the benefits of our Sit-Straight™ Cushion with a top layer of slow recovery Soft T-Foam™ (memory foam) that has a rear cutout for pressure redistribution, comfort, and conformity. Integrated wedge and Solid Seat Insert™ base provide a superior sitting platform. Removable cover with nonslip vinyl bottom is fully launderable with rear ties for security. Available in water-resistant Black cover or Ocean Blue Polyknit cover and two widths: 16" or 18".
16"D • 9"W x 6"D cutout at coccyx • 3"H tapers to 2"H rear • Firm Polyfoam with soft T-Foam top layer
Suggested code: E2601
AliMed® Sit-Straight™ Cushions combine a Solid Seat Insert™ base with a wedge cushion to discourage harmful sacral sitting. The convex base design counteracts the negative effects of a sagging sling seat by filling the sag without modifying the wheelchair or raising the surface’s height. The wedge top limits forward sliding and maintains hips at 90° for optimal postural support. The end result is proper sitting posture, improved sitting tolerance, and functional independence.
AliMed https:files/09_03_2025_2970000334_A9SXNN_Sit-StraightCoccyxCushionwT-FoamBlue18inW16inD_01.jpg https:files/09_03_2025_2970000177_A9SXNN_Sit-StraightCoccyxCushionwT-FoamStandard18inW16inD_01.jpg https:files/09_03_2025_2970000178_B9SUNN_Sit-StraightCoccyxCushionwT-FoamStandard16inW16inD_01.jpg https:files/09_03_2025_2970000334_B9SXNN_Sit-StraightCoccyxCushionwT-FoamBlue18inW16inD_01.jpg https:files/09_03_2025_2970000177_B9SUNN_Sit-StraightCoccyxCushionwT-FoamStandard18inW16inD_01.jpg 49516164514088 16 in x 16 in / Black Water-Resistant 146.50 https:files/09_03_2025_2970000178_A9SXNN_Sit-StraightCoccyxCushionwT-FoamStandard16inW16inD_01.jpg https://alimed-test.myshopify.com/products/alimed-sit-straight-coccyx-wheelchair-cushion-with-t-foam?variant=49516164514088 InStock 16 in x 16 in Black Water-Resistant 49516164579624 18 in x 16 in / Black Water-Resistant 147.50 https:files/09_03_2025_2970000177_A9SXNN_Sit-StraightCoccyxCushionwT-FoamStandard18inW16inD_01.jpg https://alimed-test.myshopify.com/products/alimed-sit-straight-coccyx-wheelchair-cushion-with-t-foam?variant=49516164579624 InStock 18 in x 16 in Black Water-Resistant 49516164546856 18 in x 16 in / Ocean Blue Polyknit 167.75 https:files/09_03_2025_2970000334_A9SXNN_Sit-StraightCoccyxCushionwT-FoamBlue18inW16inD_01.jpg https://alimed-test.myshopify.com/products/alimed-sit-straight-coccyx-wheelchair-cushion-with-t-foam?variant=49516164546856 InStock 18 in x 16 in Ocean Blue Polyknit