Lacoste Shirts that are "Designed in France Made in Peru" are authentic. I bought some shirts from the Lacoste store in Houston Galleria and it said "Designed in France Made in Peru." Most of the shirts are now Made in Peru, I hardly see any Made in France in that store. So I asked the manager if they're authentic, she said "of course they are, you're in a Lacoste store, remember?" She then explained that LAcoste is outsourcing and have put up factories elsewhere to save on labor. If they're all made in France, the cost of the shirt will be even more than $72, according to her.
Also, you need to check if it has the Devanlay print on the wash tag and the buttons should be mother of pearl, not plastic. It's a Lacoste trademark, Devanlay tag and mother of pearl buttons.
these shirts are authentic, very similar to the ones I bought from the Lacoste store.
Link Link