I got to take my little Donut on our adventure to Yosemite in the trainer sport sack! It was a huge hit with the hikers around, and I’m so happy I get to bring my baby everywhere! The backpack was a bit big for her, so customer service sent me a block for the bottom which was amazing. 10/10 recommend!

So nice to adventure and not worry if they are secure and comfortable! Especially our senior jack Russel who is 14 years old. Thank you for This product

It took a few tries to get the hang of the backpack and to get the right size. Now we are building up time walking with Crystal in the new pack. 18 lbs is a lot in a backpack! I am looking forward to building strength, endurance and most importantly - more time with my 10yo Shih Tzu pup. So glad we found a fit!

My Spoo can go anywhere with us right now till she gets fully vaccinated. Then we will have it when she is tired and can't walk anymore!!! Fits perfectly

This is my 3rd Boston Terrier and always had another brand backpack for them. Problem was they didn’t sit well in it as they were positioned sideways. Randomly I found K9 Sportsack and I’m so happy! I got the trainer for the new puppy and will upgrade after a year when she’s full grown. I have the bolster block in there and had no trouble getting her in. I have larger dogs that I take for 3 mile walks every morning and little 9 week old pup couldn’t hang—she walks about a half mile and wants to get in her bag. The only thing is chest straps should be standard on all models, besides that, zero complaints and all praise.