What are the size ranges for Medium and Large?
37755
The large collar fits my 77lb TW Coonhound very well; plenty of room to spare. The medium collar fits both my 62lb BT Coonhound; and my 50lb little mix. Again, with plenty of room to spare.
643546
I would go with the medium. The belt feels pretty true to size and since the belt has to be pretty tight to work anyway, there shouldn't be any problems. I'm concerned that the large would put you out of the adjustment range and wouldn't work well for what the belt was intended for.
1652447
X large worked fine for my husband. He is 6 feet tall with broad shoulders and a medium build. Hope that helps.
1122976
This is a medium listing. If you're anything close to 6'0" go large. There are adjacent adjustment straps to tighten around the body for a better snug fit.
671956
I would probably go with the medium size, rather it be a little big than too small plus you can adjust it. Hope this helps.
1032445
They're adjustable, but I'm inclined to say a large. The large has fit our 150 lb. mastiff, 115 lb. mastiff, and the medium fits our 110 lb. mastiff.
3548
Medium regular will fit snug.. but you won't have a lot of room to tuck it in or wear layers underneath. Large may be the way to go.
139408
Medium should fit nicely. The size of medium is already huge. I stuff my sleeping bag, my tri-climate jacket and my fleece still have some space left.
606793
I would recommend a large based on how the size I bought ran. Hope this helps.
786587
Hello, This is the sizing for the item: Sizing: Medium - white 34.0-40.0 in. Large - white 40.0-46.0 in. X Large - white 46.0-52.0 in.
271279
I purchased the Large size and they fit perfect. I am a 40 waist/32 in-seam, the length is a little long but manageable. As for the medium size I am not sure.
689346
I don't know about the medium but....on my large (i'm 5'9/195), I wear layers and have no problems at all. The large fits really big on me and I've worn: base layers for top/bottom (thermal/underarmor, fishing pants, socks pullover zip and rain jacket. Still....i've got manuverability. As I stated earlier, this is a larger size though. IMO, I think you'll be fine. I hope this helps.
1474930
I've bought a small for an adult. So I think a medium will definetely be to large, unless he is a big boy.
191077
I think size medium woul fit well large would be okay also just tighten the Velcro
1046217
I recommend you buy a package of each - medium and large. The medium fit me but I liked the large as it allowed easier application and gave some leaway for fit.
573698
The mediums fit great. If not, you could always go to a large. But you don't want them too loose.
19229
you can look up Giro's size charthttp://www.giro.com/giro/fitguide/helmet/giro_sizing_chart.pdf(medium)