Has anyone used it in combination with the ComfiLife bottom seat cushion?

Yes, and I concur with Dympo. The combination of the two has made a world of difference.

is it too thick for the car

Yes, it is too thick for my Nissan Altima. I moved my seat back two inches, and the cushion still binds/slips towards the passenger seat when I slide into the driver's seat. Once seated. it felt like my stomach was being pushed out, rather than my back supported. Tried it in my wife's M-Class MB and it was even worse...if it was half as thick, it might work in a car

Is the 15 inch dimension the width or height?

it's 15 inches wide and 12 high. and I love it!

If choosing only one, should I get the seat cushion or the back pillow?

Seat cushion. Excellent product.

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Lumbar Support Back Pillow Office Chair and Car Seat Cushion - Memory Foam with Adjustable Strap and Breathable 3D Mesh (Black)

Product ID: 252284487

Details

Brand
ComfiLife
Color
Black
Fill Material
Memory Foam
Shape
Rectangular
Special Feature
Adjustable

🎯Adjustable strap fits multiple chair types

🧠Contoured memory foam for spinal relief

🌬️Breathable 3D mesh cover for airflow

¥26207

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Description

🖤 Elevate your sit game: comfort that works as hard as you do.

ERGONOMIC S CURVE DESIGN - Supports your lumbar vertebrae, maintaining your spine’s natural curve all day.
BREATHABLE WASHABLE COVER - 3D mesh fabric keeps you cool and fresh, with easy removal for hassle-free cleaning.
CHIROPRACTOR RECOMMENDED RELIEF - Trusted by experts to ease lower back pain and boost posture.
TEMPERATURE ADAPTIVE MEMORY FOAM - Softens with your body heat for personalized comfort, firm when cool for support.
UNIVERSAL FIT WITH ADJUSTABLE STRAP - Securely attaches to office chairs, car seats, and recliners—comfort wherever you sit.

The ComfiLife Lumbar Support Back Pillow combines orthopedic-grade memory foam with a breathable 3D mesh cover and an adjustable strap to deliver targeted lower back pain relief and posture correction. Recommended by chiropractors, its ergonomic S-curve design supports the natural spine alignment, making it ideal for office chairs, car seats, and more. Lightweight and washable, this pillow adapts to your body temperature for all-day comfort, backed by a lifetime warranty.

Specifications

ASIN	B08HPLZYS9
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#16,174 in Office Products ( See Top 100 in Office Products ) #98 in Back Cushions & Seat Cushions
Brand	ComfiLife
Brand Name	ComfiLife
Coin Variety 1	Lumbar Pillow, Back Cushion, Lower Back Pillow, Office Chair Pillow, Posture Cushion
Color	Black
Customer Reviews	4.4 out of 5 stars 11,622 Reviews
Fabric Type	Breathable 3d Mesh, Ergonomic Lumbar Cushion, High-density Memory Foam, Mesh, Polyester
Fill Material	Memory Foam
Global Trade Identification Number	00850023513007
Item Dimensions L x W	15"L x 12.5"W
Item Firmness Description	Medium Firm
Item Weight	16 ounces
Manufacturer	ComfiLife
Manufacturer Part Number	Back Support Lumbar Cushion
Manufacturer Warranty Description	Lifetime Warranty
Material Features	Adjustable, Breathable, Ergonomic, Removable, Washable
Material Type	Memory Foam
Material Type Free	Latex Free
Model Name	Memory Foam Lumbar Pillow
Model Number	Lumbar Pillow Cushion
Number of Pieces	1
Pattern	Solid
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	Car Seat, Computer Chair, Desk Chair, Driver Seat, Gaming Chair, Home Office, Office Chair, Posture Support, Recliner, Traveling, Wheelchair
Shape	Rectangular
Special Feature	Adjustable, Breathable, Ergonomic S-Curve Design, Memory Foam, Removable Cover
Special Features	Adjustable, Breathable, Ergonomic S-Curve Design, Memory Foam, Removable Cover
Specific Uses For Product	Back Pain Relief, Lumbar Support, Posture Correction, Sciatica
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥26207

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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