I have a 17 pound Bichon, and a 12 pound Bichon, which size would I get them, more for the 17 pounder...he's a bit anxious..
1582461
I have a 17-20 pound Welsh terrier and the medium was a perfect fit. We originally bought a small based on the Thundershirt sizing but that was about 2 inches short on his back and too snug around his chest. Hope that helps.
1582462
My Bichon is 15 pounds. I bought small. Unfortunately, wearing the shirt seemed to make him more anxious. I returned mine. Every dog is different. Hope yours works for him!
1582463
I went with the medium for my 18 pound Jack Russell and it fits well. That should be fine for your dog.
1582464
My Cockapoo weighs about 16 pounds; the small size fits him with room to spare.
1582465
The best thing to do is measure their chests. This is more useful than the weights. I used the same size shirts for two dogs weighing 13 and q7 pounds.
1582466
The manufacturer's website has these specifications for sizing --size weightXXS < 7 LBSXS 8 - 14 LBSS 15 - 25 LBSM 26 - 40 LBSL 41 - 64 LBSXL 65 - 110 LBSXXL > 110 LBS
2249819
I have a 15 pound Bichon, and I ordered a size 'small', which works well......but he is pretty short, so that may be why the small worked for him. And actually, it just fit...so probably a medium would give you more option for adjustment..
670833
go up one size. I have a mixed breed that weighs 23 lbs and it is a comfortable size for him.
611432
I purchased a large for my 28lbs. Boston Terrier (yes, big for a Boston); it was way to big for him. He has a large rib cage for a medium size dog, hence we decided to go up in size. This way a mistake, as the jacket seems to run true to size.
255567
I'm not sure what breed your dog is sorry...but I have a mixed terrier dog and we got the small. I think next time we may go up a size. The small fit very snug but are hard to put on in our dog's case.
1414572
I would go with the smaller of the two. I did the same with mine and it stretches out a bit much. I wound up going to petsmart and buying the newer version "Thundershirt Dog Anxiety Treatment". It was cheaper than online to my surprise. I still wound up buying larger than I should have, but it's not as difficult to put on, and I can adjust the fit even more in several places. But to your question. Yes go with the smaller size. And the the rest is just unsolicited free advice. :-)
1941310
My 7 lb. ChiChi fits comfortably in the medium pack. I would suggest a large pack for your 12 lb. terrier. Hope this helps. : )
1777218
Depending on his weight I would get a medium...they are adjustable so it is better to get a little larger than too small. I have 3 dogs that are 70 lbs and I got large.
464533
We have a 12 pound Pomeranian and he kept walking out of the extra small size and I was afraid to tighten them anymore. So I don't think the extra small would work for you.
1146010
I bought the medium and the large. My 45 lb shepherd is apparently claustrophobic and wouldn't go in the medium or the large - which my 100 lb lab loved. There was plenty of room in the medium for the shepherd, but he was adamant. He didn't like the large either. Ended up returning the medium and getting an extra large. The 100# lab still loves the large house, and my 45# shepherd finally has a house (XL) which he loves. My son has a 35# beagle, and I got him a medium house. Plenty roomy for him....
1370370
You need to measure your dogs girth/chest. My dog is only 12 lbs but needed a medium and it was still too small.
1544946
My dog is just under 17 lbs.....just measured his chest which is 19 inches.....I believe the x-small says 16 to 19 lbs....which is too small for my dog.....but I am going on memory here so make certain the x-small says 16 to 19 lbs....so at 11 lbs the x-small should fit your dog.....
414098
I would get the Medium size. We have a 30+lb Beagle and the medium size is just perfect for his paws. It works really well!
210048
If you think your dog might grow more, I would get the large size. If he/she is fully grown I would get the medium size. I would not hesitate to contact the manufacturer with this question either.
255877
I have a pug that weighs about 22 pounds and he wears a small. I would think an extra small would be better for your dog.
1032446
Our Bernard weighed 160 and the large was great. Its adjustable. Enjoy your big guy, we sure miss ours! I do still have his tags and collar!! :-)
1251420
Our 37lb beagle just fits lying down and he is medium so it just might be roomy for your 12 lb but I don't see that as a bad thing. You could also save some money and get the smaller version