Reviewed by LG in NV from Nevada on Thursday, March 12, 2015
My pup is a lab-sheppard mix (11 mos, thin, and about 55 lbs) and the medium fits her well with some room to grow. It does tend to slip a bit to one side, in spite of even weight and adjusted straps... but it doesn't seem to bother or chafe her any. The pockets are large, and while we limit it to one, you could easily fit 2-16.9 fl oz water bottles in each side pocket. We find the loop on the back is a nice feature for us too.
Reviewed by Mountain bound from Boulder, co on Wednesday, December 17, 2014
The medium fits my 47 pound dog great although she could have gotten away with a small as well. We've used it a few times so far in preparation for backpacking this summer. For the price she seems to be really comfortable and Ive had no issues getting her to wear it.m
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The medium will fit a dog that is 50-80 lbs.
Answered on 10/4/2010 12:00:00 AM by Customer Care from Sierra Trading Post
I have a Small Munsterlander that weighs 50lbs. His girth is about 26 inches,and a medium fits him with plenty of room to go bigger, and a little room to go smaller. I would recommend a medium. Awesome product, highly recommended for your puppy.
Answered on 1/17/2011 12:00:00 AM by Josh from Juneau, Ak
My Std Poodle has a 26" girth and the Med is almost too large for him. I suspect the Med would be perfect for your greyhound.
Answered on 9/1/2011 12:00:00 AM by East Bay Hillhiker from Oakland, ca
my dog weighs 55 lbs and has a 28 inch, and wears a med.
Answered on 9/1/2011 12:00:00 AM by papa the hiker from Wyoming