I have been wearing these thongs for a few months, and they are so good! And they are currently under $6 for 6 pairs!
Seamless Thongs – 45% off, under $6. Use code 45FHUDHL. Promo expires 10/20 at midnight PDT. I have these in size small and like the fit. I think you would be ok going to true to size or sizing up. Click below to shop.