Usually if you are looking at anything less than about $65 it isn't as supportive or of good quality. I am so very passionate about this subject because my horse's legs, their foundation are the most important thing to me.
These "Wrap n Ride Boots" don't really seem to have the support a typical splint boot does. A "universal fit" also throws red flags to me. Universal fit in my mind is scary because I want a boot that is going to have a personalized fit to MY horse and not just fit a general horse. Having the correct size in protective boots is how the boots protect in the first place.
Everyone has their own opinion prefer a certain brand or two. I prefer Classic Equine "Legacy" boots or Pegasus boots. They have always offered a great snug fit that is supportive to the all important splint! I have used polo wraps on the back legs and I feel that if they are really wrapped correctly they can provide some support, nothing super great but the way they are wrapped are the most important.