We use these. They fit a chest 30-65 inches and have a minimum 35 lbs buoyancy. Site Maintenance

Easy on, easy off was important for us as I rarely take mine off. I don’t even realize I have it on half the time.

There is also this model that is a bit less expensive.. Fits 30-52 inches chest and offers a minimum 22.5 lbs of buoyancy. Site Maintenance