I'm not one for posting reviews.
But I was super upset when I realized this was a knockoff. I know I was getting a great deal. But that's kinda how Amazon works..
you can't put a price tag on my puppy so I went to Petsmart and just bought the real Sherpa.
I'm attaching photos. The purple is the "Sherra" and the black is the official "Sherpa"

Great carrier. I decided to go with the large, we were able to fit our "thick" 27 lb. pug in with no issues flying Southwest. He had space to turn and lie down but I don't think a pet any larger would fit. For reference the little guy is 22 inches long (excluding tail) and 14 inches high. We did start training him to get in a few weeks before travel so that he'd be ok in there for a couple hours, this step is highly recommended. We did not see any zipper failure as some have experienced. The bed was very stiff but seemed comfortable, the carrier held its shape when carrying nicely.

The attached picture says it all: our 17lb cat willingly hanging out in his carrier. We decided to order this one because we needed something with a top load option. We used to struggle with getting this strong little guy inside our old plastic carrier, but were able to get him in the first time with minimal struggle. He's a large cat, but fits in perfectly with plenty of room to shift around and switch position. I'm a 5'3" female and found this much less cumbersome to carry than the awkward plastic carriers, and the shoulder strap is a welcome option.

Excellent product!

Bought it to take my dog on a Southwest airline flight. He's a 12 lb Pomeranian, he looks bigger than he is... Since they're pretty much all fluff. I went to my local Petsmart which carry this brand and put him in a few sizes to try it out, he fits in a Medium just fine but we got a large since it's about the same price and we want him to be able to move more. He can turn around and stand up in this bag (with head down). When I'm carrying him for an extended time I wish I got a medium as it is pretty heavy with my dog and the bag (the bag is about 4.5 lb I think).

On the southwest flight middle seats have the most room. (Window has curve from the wall and isle is slightly smaller). The bag doesn't fit horizontally under the seat but vertically is fine, with a bit sticking out. I'm petite so it doesn't make me feel uncomfortable or anything, but if you're really tall you might need a little more leg room.

The bag it self is sturdy, we only used it twice so far and it's still in perfect condition. The first time he went in the carrier he scratched the screens pretty hard but didn't break the screen or anything. He hasn't scratched since.

It does the job well and designed well! I haven't used any other pet carriers so I can't really compare. The only thing is it's kind of heavy 😓 but anything for our little friend!

I used this on Southwest Airlines with my mini schnauzer ! No one even noticed I had a dog inside . The airline didn't even question the bag . My dog was able to turn around in it but not literally stand up unless the top zipper was open ,which no one even checks. It fits perfect under your seat . I highly recommend to familiarize your dog with the carrier weeks or days before flying . My schnauzer did amazing and slept most of the time on my direct flights ! The bag is comfortable to put over your shoulder but after a while carrying my 15 pound pup you get a little tired (obviously ) . I will continue to use this travel carrier for all of our future travels with my mini schnauzer !!