I shortened it a little, otherwise kept to the pattern. Glad I shortened though, being I barely had much left over out of the one skein!! Thought I might have to give him a “gimpy” fin if I’d ran that close to running out! But, I didn’t! :) The tail fin part of the patternwas a little vague, so you kind of have to wing-it. Otherwise yes, it really is a “one-size-fits-all”! Fits my 4-year-old and me! Kids love stuff like this! It’s SUCH a unique idea, she really should be making at least a ‘little’ moolah with her pattern!