I put athletic build in there because people were putting that in their description when selling rigs. I read that article also. I know theres chutes that pack smaller than others and maybe bigger just dont want to buy one and waste money because it doesnt fit. Asked my instructor and gave me a 1 word answer on a 2 paragraph description then asked about help on sizing and said "You will have to look on there website for sizing". But that doesnt really help.