What size for a 45b Border Collie?
1961173
This is the sizing guide provided by the manufacturer of the Opti Fit Head Collar Sizing: Small: Westie, Jack Russell, Yorkie, Border Terrier Medium: Cattledog, Springer Spaniel, Border Collie, Labrador, German Shepherd, Boxer, Doberman, Retrievers Large: Rottweiler, Great Dane, Newfoundland, Large German Shepherd
1961174
i got a medium for my heeler mix because of her short snout... i think M should be fine.
1961175
This is the sizing guide provided by the manufacturer of the Opti Fit Head Collar Sizing:Small: Westie, Jack Russell, Yorkie, Border Terrier Medium: Cattledog, Springer Spaniel, Border Collie, Labrador, German Shepherd, Boxer, Doberman, Retrievers Large: Rottweiler, Great Dane, Newfoundland, Large German Shepherd
1961176
Medium worked perfectly for my 50lb Australian Shepard. I assume that Medium is what you need.
1961177
My dogs weigh closer to 50 lbs each, and the medium fits. It would have more to do with the size/shape/length of the dog's muzzle than weight. I would say the medium would work fine on a Border Collie.
2065707
I am using it on my golden retriever that is 64 labs. I think it would be too long for a border collie's leg, I would go down one size. I do have to say it has worked great for my dog, I would not hesitate to purchase it again...Hope this helps
498661
I have 2 Bearded Collies and I order Medium for them. One weighs 38 pounds and one weighs 45 pounds. Hope this helps.
1599980
I would get a X-small because in the details of this specific size it states "For dogs with a girth of 15-inch-19-inch and weighing 11-18-pounds" that goes in correspondence with the girth and weight of your cairn terrier! It is true to the size. I purchased a Large for my 40 pound dog and in the details for that specific weight it said "For dogs with a girth of 26-inch-35-inch and weighing 40-70-pounds." The weight is all I went off of at the time due to not know what his exact girth was. It fit perfectly for him!
619564
I have a 45lb American Pit Bull and the large fits her. Since bully breeds can sometimes have wide chests, I measured my dog's chest girth, neck, and back then went to the Outward Hound website to look at the sizing chart to find the best size. The website says the chest girth is the most important probably because the chest straps have the least room for adjustment. Good luck! It's a great backpack :-) http://www.myoutwardhound.com/2490.html
1797561
I can only say that the medium fits our 60 lb border collie just right. I would guess over 75 lbs would need at least a large.
258
My daughter's Lab is about 90# and a large Border Collie comes in at around 50#, so my best guess is this collar will be too large. It fits my 170# Cane Corso very well. You don't want the collar to be too large or the dog can slip out of it at he worst possible time--or the collar can get caught up on something and be a danger to it. I once rescued a neighbor's Collie that was hanging by its collar off a chain link fence. Don't ever want to see that again. Good luck with your new puppy.
191155
I would definitely go with the largest size possible, these run small and I bought the size 8 for my 45 pounder
954541
My dog is a 45 lb greyhound cattle dog mix and he loves the large. He's pretty long and fits just perfectly from one end to the other.
2098417
We have a Cocker Spaniel approx. 25lbs. He fits in the 36" with ample room. Your dog would probably be more comfortable in the 42 in my opinion.
2055011
I bought medium for my 45-pound Springer and that was good. I think you have to get the large size.
307905
We have a 20# Jack Rossell mix. She is rather long and has short legs. We are glad we got the medium rather than the small. A medium will easily handle 40# but I would look at your dog's height and length rather than weight. We are happy with are purchase.
1044734
either the XL or XXL should work. My 45 pounder has the XL and my 85 pound the XXL. Yes, Labs are great chewers too!
463752
I would go a size down; I got a size 5 for my pound boarder collie/sheltie and it fit well. spaniels tend to have shorter muzzles
1730135
We have the large for my 45 pound dog and she has plenty of room. I would recommend the extra large.
1217878
I think the large size should work. I don't know if there is an extra large, but if there is I would get that. The large is on the big side for our 45lb Border Collie mix, but she likes larger sizes toys.
184087
Medium. I bought medium for my Bichon Frise (14 lbs.) He managed to get out the collar. Small was a perfect fit. Corgis are slightly bigger, so medium will be a fit.