Don't have knowledge on Dakine bags, but if you're board is a 156 I'd suggest you get something longer than a 157. The extra length of the bag will be very beneficial to you when you travel overseas since you will be able to stuff all your gear,etc. into one bag. My friend has the Burton Wheelie GIg bag in the 166, and can stuff his board and all his gear (jacket, gloves, helmet, boots, etc.) in it and then load it up with all his other crap like clothes,etc.