What is lumbar support in a car?

Lumbar support is fitted to the seats of some cars to help passengers maintain good posture and prevent lower back pain

Back Threaded Knitted Net Car Seat Lumber Support, Size: Medium

Select Chiropractic and Wellness — Lumbar Support in the Car

KingPavonini® Memory Foam Seat Cushion & Lumbar Support Pillow

Super Comfy Lumbar Pillow, Lumbar Support Pillow for Back Pain

Universal Car Back Support Chair Massage Lumbar Support - Temu

Big Hippo Lumbar Support Pillow - Memory Foam Lumbar Pillow Back

Memory Foam Lumbar Support Pillow for Car - Mid/Lower Back Support

Slouch Potato Lumbar Support Cushion - Duluth Trading Company

The Amazing Benefits of Using a Lumbar Support for Car Seats