Factory Size
Ron,The O'Day 25 came with a jib and a genoa. I think that the J is 10'-6". That would be a 100.The sail sizes that came with the boat are.luff 29.8 leech 27 foot 11.3 Jibluff 29.8 leech 27.7 foot 17.2 Genoa I own two 25 O'Day 25's and they both came with the same sails. Neil Pride was the sail maker.hope this helpsr.w.landau