The Basic U-Sling from Bestcare Lifts is easy to apply to the patient when seated and made of a durable polyester with padding for comfort. It has four loops to increase weight distribution for superior comfort. The Basic U-Sling is great for bed to chair and chair to commode transfers as well as floor pick-ups. This sling will work with 2pt and 4pt spreader bars and comes in 3 sizes, Medium, Large, and Extra Large. 

Measuring:

User Width = Measure user in a seat position at the lower buttocks.
User Back Height = Measure user in a seated position from the buttocks to the head