Think Ergo Arm Sling Sport Adult Small Child Youth - Ergonomic Lightweight Breathable Mesh Neoprene Padded Strap

Do any of you have any suggestions of a sling you've found with no "give" to it? with no bone in my upper arm, i need maximum support. thanks!!! :-)

Does thumb loop have to be used?

Is this product latex free?

Will this sling support a cast which goes from the armpit to the fingers?