What are the size ranges?
372579
Probably best to go to Columbia's site and get the kids sizing chart there.
930116
I don't know the measurements as they were a gift but fit my grandson same as other brands. The under armour site might have a size chart.
534994
A medium size would be best for the 33 inch waist. As the medium size fits up to a 34 1/2 inch waist. The range in waist size on a medium is between 30 and 34 1/2 inch. I bought a medium for my son and he has a 32 inch waist and his fit fine.
376892
10 to 13 is fine. Just cut along the lines designated for your size (10), and it'll fit fine
128860
S (35.5"), approx. waist size: 30 - 34M (39"), approx. waist size: 36 - 40L (42"), approx. waist size: 42 - 46
1652447
X large worked fine for my husband. He is 6 feet tall with broad shoulders and a medium build. Hope that helps.
6225
You can find product sizing charts here: http://profchoice.com/p-6396-customer-care.html#product
566959
They range from small, approx 2", point pads to longer pads for across shoulders and backs, approx 6" (I can't find my bag to measure as I just moved).
1058768
There's no specific sizing chart that I am aware of. I simply did a guesstimation, and luckily, was right. But I do know, small is really small.
1169638
size L-11(8.0mm), size M-13(9.0mm), size N-15(10.0mm), size P-16(11.5mm), hope this help.........
716926
I would think a medium but honestly you'd be better off going to a store and trying one on for size. There can be so many variables involved in fitting a pack its vital you get the correct fit otherwise you could end up disappointed. These are good packs, good enough to try on first before purchase, good luck.
2281981
Would like to order, but need specification on sizings of the Small/Medium/Large in order to determine what size is needed for my 11 year old son.
1654943
I would recommend a large. The medium would probably work until you got closer your goal.
192417
I would suggest a large. Personally I found the hook and loop straps on the sides will cinch down several sizes if needed.
65396
They have a size chart on the website that could help you more. Go to criticalcycles.com
2248631
I wear XL and there is enough room to spare for another size or 2 for sure. Hope that helps.
655806
Adult small 54-55cmAdult medium 56-58cmAdult large 59-60cmAdult extra large 61cm