The Bearikade is aprox 9" diameter cylinder. The different models just have different heights, same 9" diameter cylinder.
The Bare Boxer is more tapered towards the ends, so it allows for more flexibility when putting it in your pack.
For the $ & weight difference, the Bare Boxer weekender is a better deal.
Although, Bearikade does offer custom sizing for height. So if you want something a little shorter, but still 9" diameter, they will make it. Check out the pricing list on the Custom Bearikade tab on the Wild Ideas web site.
