Envelope Arm Sling is like a practical and comfortable solution for supporting an injured or recovering arm. Its lightweight design likely makes it easier to wear for extended periods without feeling too burdensome. The over-the-shoulder strap and Velcro closure sound convenient for adjusting the fit to suit different body sizes and levels of support needed. It seems like a well-thought-out product for aiding in the healing process while ensuring comfort for the wearer.
Uni-Foam Sling and Swathe is made of foam and soft fabric. The shoulder straps are 1 1/2 inches wide, they go over your shoulders, crisscross, and then fasten to the front of the sling with adjustable buckles and hooks. The swathe can be removed, it wraps around your arm and chest, and it closes with hooks.