Dominique Response: We do not recommend using bra extenders because it is like putting a band aide on a wrong bra size. What we recommend is to go up a band size and down a cup size, in this case a 40H. However, this style only goes up to a G Cup so this is not an option. An option you could consider trying is the Dominique Maxine Everyday Full-Figure T-Shirt Bra 4500. Either way, check out HerRoom's Bra Fitting Center to find your perfect fit.
Tay from Fort Lauderdale, FL