www.twinlook.com offers designs for multiples, i.e. twins and triplets, as well as twinlike outfits for siblings of different ages or "best friends".
"For multiples" shall mean different clothing for twins or triplets which, nevertheless, expresses the togetherness. Not the same in twin or triplet pack but similar and mirror-inverted! Just as twins and triplets are - definitely not the same or identical but rather confusable and individual, i.e. each a unique little person!