Comfortable Wheelchair Backrest for sale

Afternoon sunlight slants into the room. Grandma Li dozes in her wheelchair, her shoulders slightly slumping, yet her back remains steadily pressed against the backrest, without a trace of hunching. The wheelchair's backrest was specially custom-made by her son—its curve perfectly fits the natural contour of the human spine, like a pair of silent hands gently supporting the weight of years from the shoulder blades to the coccyx.A good wheelchair backrest is never a rigid slab. It should have the warmth of memory foam, quietly shaping itself the moment it touches the body, tucking protruding bones into soft indentations. It should also have the breathability of mesh fabric, ensuring no sticky sweat accumulates on the back even after long hours of sitting, leaving only the faint coolness of wind passing through the mesh.   The most thoughtful touches lie in the details: slightly raised side wings to prevent unconscious leaning; an adjustable lumbar support pad that gently rotates with…