B Cup Size Bras Styles Natural, Beautiful B Cup Bras with Ultimate Comfort and Styling. Our B Cup bras offer you much more than just ultimate comfort. These stylish and lovely B cup bras are designed to flatter your curves in as much or as little coverage as you desire. When you're looking to buy your new B Cup bra, compare bras and shop at Big Girls Bras. Comfort Strap Bras Convertible Bras Everyday Bras Demi Bras Nursing Bras Plunge Bras Padded Bras Molded Bras Strapless Bras Push Up Bras Racerback Bras Sports Bras T-Shirt Bras Seamless Bras These are the types of bras that you'll more frequently find in B bra cup sizes. This selection includes: 3 Section Cup, Comfort Strap, Convertible, Everyday, Demi Bras, Front Closure Bras, Prosthesis, Maternity, Nursing, Plunge, Padded Bras, Molded, Strapless Bras, Seamless, Push Up Bras, Racerback, Sports, Training Bras, T-Shirt. And depending on your band size, B bra cup sizes are perfect for bras sized as Small or Extra Small.