If you wanna know what it takes to be "Too Hot To Handle" -- just ask season 2 cast member Emily Faye Miller ... who'd probably just point you toward this getup she wore herself.

This mini dress from Australian online fashion retailer Beginning Boutique is one Miller famously rocked on IG not too long ago ... to much fanfare. And now, it can be all yours!

The Mia Cross Neck Dress is shockingly affordable -- just $59.99 -- and is also lightweight, slinky and curve-hugging ... made to show off your assets as well as your figure. With a halter neck, waist cutout and adjustable ties, you can show off your fashion sense.

An Instagram post of EFM wearing the outfit quickly amassed nearly 500,000 likes and 1,100 comments -- and people wanted to know where they could snag it. Welp, the secret’s out!

It's available in sizes XS to XXL, and you can score free international shipping on all orders over $100. Snap up your own from Beginning Boutique in both stunning green and peachy pink today.