Diapers Are diaper sizes pretty user friendly? Hadley has been 100% cloth diapered since day one but…

Diapers

Are diaper sizes pretty user friendly? Hadley has been 100% cloth diapered since day one but we're going to Europe for a couple of weeks in June so I'll need to buy a box for while we're there. I have no clue what size to buy. My sister gave me a few coupons that expire Dec. 31st so was trying to plan ahead and buy them now. :)