A tank-style sports bra is absolutely your best option if you want to hide the fact that you are wearing a bra.
The bra straps and neckline look exactly the same as a tank top. That means that your bra lines will show just the same as a tank top style under-vest. If you combine this bra style with a tank-style under-vest nobody will suspect a thing as long as your bra and under-vest are the same color.
Here are a couple of styles for you to choose from.
COMFY BRA Seamless Sports Bra
The COMFY BRA Seamless Sports Bra (available on Amazon) is a pullover style scoop neck seamless sports bra is made of a double layer of lightweight and ribbed fabric with 0.98” wide straps; 2.95” elasticated under-bust band provides moderate support.
Fruit of the Loom Women’s Seamless Pullover Bra with Built-in Cups
The Fruit of the Loom Women’s Seamless Pullover Bra with Built-in Cups (available on Amazon) is one of their best sellers. Unlined to give a smooth natural look, this bra is perfect for everyday wear.
Bali Women’s Comfort Revolution Easylite Seamless Wireless Bra
The Bali Women’s Comfort Revolution Easylite Seamless Wireless Bra (available on Amazon) features stretch fabric that is so soft and light, you will hardly notice you are wearing it.
BESTENA Sports Bras for Women, Seamless Comfortable Yoga Bra with Removable Pads
The BESTENA Sports Bras for Women, Seamless Comfortable Yoga Bra with Removable Pads (available on Amazon) is great for a yoga class as the material very breathable, soft and wicks moisture.