After years of searching for the ultimate Breton stripe top I think, possibly, it is finally found www.cabbagesandroses.com/fashion/100687/C01873/clothes/jersey/stripe-slouch-top
Bought mine in Jigsaw and it is lush. loose fitting but v flattering - the sizes come up biggish. The quality is fantastic and it really does look very chic on. I have wasted so much money trying to find the right one. My search is over.