Horseware makes all three and their basic construction is the same, with the difference being in the weave/strength of the fabric and the cut of the leg arches and front closures.
The higher the "denier", the tougher the strength of the fabric.
The "Wug" necklines can be restrictive to horses who are built with a high neck-set, or with particularly muscular necks. If yours is one of those, go up a size. I prefer the Horseware blankets with removable neck covers, which offer more freedom of movement.
Be careful with the Rambo Quarter Horse blankets. If you fall into one of those, go up about 4 sizes. Literally. Also, I bought some Rhino Wugs and couldn't wait to get them sold. They were awful awful pieces of junk.
I've found the 3 to run the same size-wise, but the wugs do run smaller. I've had great luck with Rambo and Rhino, but have had Amigos completely fall apart - absolute junk and a complete waste of money.
Rambo has a more generous drop than Rhino and Amigo, IME. My wide warmbloods that wear Rambo comfortably tend to have some belly exposed in the shorter Rhino and Amigo blankets. Rambo quality has always been much better than the other two lines, but the newest Rambos I have seen have not looked quite as well made as in the past (surcingles poorly stitched, less overlap on seams, etc.) - only time will tell for them.
Agree with others that the wug cut can be more restrictive in the shoulder, so I usually go up a size. As for the QH line, those are US sized, so measure differently than the reg lines -Horseware talks about how to measure on their website. My experience with the QH blanket was that my little guy looked like a hippo in a miniskirt - way too narrow and short drop for my (I thought) QH built warmblood. Returned it!
For those who have gone up a size in the Wugs, did you find that they fit wider in the shoulders? I emailed the US Horseware rep (email on their website) about whether a size up would allow more shoulder room or just be a longer blanket and her exact words were "the neck cut would be the same just longer on the tail."
For the person whose Wugs fell apart, what fell apart on it? I bought one over the weekend but am debating on whether I like the fit and haven't taken the tags off yet.
"And I saw heaven opened, and behold a white horse..." ~Revelation 19:11
Several of the horses here have Wugs that have been going strong for more than 5 years. I have not had problems w/the Rambos or Wugs at all, in fact they are my favorite blankets. My favorite of all time is the heavyweight with removable neck cover; its only drawback is the price -- it may be Rambo's most expensive blanket.
i just bought a rhino wug for my mare. did some research about sizing before i bought it and information i found indicated that their sizing does differ. rhinos run smaller than rambos. i believe the info i got was directly from horseware's website.
my mare fell between sizes and after considering that info and discussing with the tack store owner i got her a 72 which fits her perfectly
I have wide 81/82 horse with a big chest and shoulder. The Rhino original 81" fits him perfectly. The Wug is too small and smooshes on his withers, but works great on my high-withered, thinner TB.
I am considering a Rambo Plus turnout with the built-in neck for the big horse (he's a pansy and shivers when it's cold and snowy). I hate dealing with neck covers and need something for the storms and the extreme cold snaps.
to clarify my prior post. i didn't mean that rhino's run small, just smaller than rambo's (which run larger). their instructions also say to take 4" off the usual measurement from center of chest to tail.
I LOVE the Amigos best bc u dont have those leg straps to deal with & the blanket stays in place whether they are galloping or laying down.
Just wish theyd come in more colors than the basic blue and black.