Each side of this triangle is 5 inches. There is no stretch and it runs really small. I was lucky it covered my nipples. For an extra large, it fits like a small. This bikini is so cute I hate how disappointed I am. Again if you have large breast, do not buy!

I bought a size small. 5’4 in height 136lbs measurements 36’ 27’ 36. The bikini does have stretch. The medium probably would have fit me too but i feel the small gives the same fit as the model.