The Bra-ket is the bra pocket for your phone and money that’s heat and sweat resistant and shields you from radio frequencies.
Small: Fits most flip phones (4.25 X 2.25 inches).
Medium: Fits all iPhones and similar sized phones without an additional case or with a THIN skin (5 X 2.75 inches).
Large: Fits Samsung models and most other Android smart phones, or iPhones with a thick case (5.5 X 3.25 inches).
X-Large: For Samsung Note (yes some gals wear their Notes in their bras, just wear it sideways up in the strap area – 6.5 X 4 inches).