Both pictures show the same sling. Adjusting strap length makes all the difference in how upright you sit! You can sit up even straighter than shown in picture 2, but a sling with a head rest is the best option.
Hoyer® Padded U-Sling with Head Support $155
Also available in mesh fabric so it can be used for bathing as well.
Invacare Reliant Divided-Leg Sling with Head rest R101 $125.00
BHM Combi $210
Mesh fabric so it can be used for bathing as well, $260
Liko Hygiene Vest with High Back, model 55
Portable lift with Hygiene/Toileting sling.
(Wish I'd seen this before installing my ceiling lift!)
This sling won't work with other brands of lifts.
Somewhat higher back support, but they do not
offer a head support hygiene/toileting sling.
Links to Clothing
They have sweat pants and dressier gabardine slacks
as well as some women's coordinated top and pants sets. They also have side zip slacks.
Buck and Buck.com/
Ladies Open Back Pants
Men's Side-snap Pants
Men's Velcro Fly Pants