Underbust Stay Up Shaping G String - 2 Pack

Regular Price
$116.00
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$116.00
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Color: Nude

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We created this value pack of the Underbust Stay Up Shaping thong featuring a classic Black, Nude & Tan combo for the perfect shaping solution for all your dark and light outfits.

This revolutionary shaper is unlike anything else on the market. With a no VPL thong finish, this item slims and shapes your figure with a completely invisible look. Save with our value pack - get one of each for under light or dark outfits, or stock up on your favorite color! A side-seam-free finish ensures there’s no visible lines - nothing to ruin the lining or look of your outfit. Two sets of detachable straps mean you can wear this shaper as you choose - strapless or with straps, depending on your outfit. To prevent rolling down, tuck this item into your bra and you’ll have instant, powerful torso shaping. Firm control points nip you in at the waist, and soft touch fabric creates a sleek, slim body line that’ll look amazing under anything.
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  • Strong figure shaping
  • No VPL thong finish
  • Comes with 2x detachable straps (fabric and transparent)
  • Cinches waist
  • Underbust cut - can be worn tucked into bra to minimize rolling down
  • Straps also prevent rolling down
  • No side seams and no tags
  • Creates sleek, slim body line

Care Instructions: Warm machine wash. Line dry.

Fabric Content: Nylon/Spandex

Please note that this item is not suitable to wear during pregnancy.

Please note that this product is not eligible for returns due to hygiene reasons. 

Control Level 3
Double-layer shaping fabric targets tummy zone with maximum control

Australia Shipping and Delivery

  • Free Standard Shipping on orders over $99.
  • Free Express Shipping on orders over $149
  • $10 Standard or $15 Express
  • Same business day dispatch on express orders placed before 1pm Melbourne time. Standard orders are despatched within 1–3 business days
  • Same day delivery in Melbourne – order before 11:30am, for eligible addresses within 50km of our Moorabbin warehouse (select at checkout)
  • Free Click & Collect from our Moorabbin VIC warehouse
  • International shipping available with tracking

Standard and express orders within Australia are delivered by Australia Post, with tracking emailed to you as soon as your parcel leaves us. Same day Melbourne deliveries are couriered by Go People.

Easy returns & exchanges  |  Full shipping & delivery policy →

Made on circular machinery, our seamless intimates and apparel range offers stretchy support and easy flexi-sizing making it easy to shop online.

We recommend ordering according to your usual CA standard size. If you do not have an idea of your approximate CA size, you may check the size chart for body measurements and look on each B Free product to find your corresponding B Free size.

As a general guide, we recommend ordering tops & slips according to your bust size, shapewear according to your hip size, and underwear according to your hip size. Note that this can vary depending on your body shape and personal preference.


CA Size

Bust (tops & slips only) Waist Hip Thigh circumference at widest point (anti-chafing midi shorts only)
  Measurements in inches
2 33"-34" 25"-26" 34"-35" 20"-21"
4 35"-36" 27"-28" 36"-37" 21"-22"
6 37"-38" 29"-30" 38"-39" 22"-23"
8 39"-40" 31"-32" 40"-41" 23"-24"
10 41"-42" 33"-34" 42"-43" 24"-25"
12 43"-44" 35"-36" 44"-45" 25"-26"
14 45"-46" 37"-38" 46"-47" 26"-27"
16 47"-48" 39"-40" 48"-49" 27"-28"
18 49"-50" 41"-42" 50"-51" 28"-29"
20 51"-52" 43"-44" 52"-53" 29"-30"
22 53"-54" 45"-46" 54"-55" 30"-31"
24 55"-56" 47"-48" 56"-57" 31"-32"


If you are still unsure about your size after referring to this guide, email our friendly customer service team at contact@bfreeaustralia.com.au. Be sure to include your relevant body measurements and the style that you are interested in.

See How it Fits

See How it Fits