I realllly love it. This model looks slightly different, but same company https://www.amazon.com/FURRY-FIDO-Carriers-Small-Dogs/dp/B016QTMBUK/ref=sr_1_1?qid=1661103909&refinements=p_89%3AFURRY+FIDO&s=pet-supplies&sr=1-1
My guy is a couple pounds heavier than yours, but it's not really fatiguing until like half an hour or so. It's so convenient being able to just scoop him in it for a quick grocery store run or drink at a bar. Even places dogs aren't allowed, the only thing people comment on is how cute he is lol
There's a stuffed dog with a battery operated heartbeat that your puppy can sleep with. You can also put a heat-activated pouch in it, but we didn't bother with that. It's a miracle worker! Snuggle Puppy