Low Back Bra Extender

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$20.00
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Color: Black

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Alternate Product
2 Pack
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Alternate Product
2 Pack
$30.00
Convert any back closure bra for low back tops and dresses! This low bra back extender will fit onto any 1 hook, 2 hook or 3 hook bra back closure. This adjustable bra strap wraps around the front of your body for a secure fit, lowering the back of your bra for an invisible look with revealing dresses.
  • Lowers the strap of your bra for low back outfits
  • Can fit any 1 hook, 2 hook or 3 hook closure bra
  • Wraps around your front
  • Secure fit, still maintains bust support

Note: Bra not included with this product. This low back bra strap will work with any B Free bra that has a back closure.

USA Shipping and Delivery

  • $6 Flat Rate Standard Shipping for orders under $89.
  • $12 Flat Rate Express Shipping for orders under $139.
  • Free Standard Shipping for orders over $89.
  • Free Express Shipping for orders over $139. 
  • Free Express Shipping + Gift for orders over $189. Use of discount code may void free shipping unless the total order payment is over $189.
  • Express Shipping: Total dispatch and delivery time is 2-5 business days.

Tracking Your Order: Once your order is placed, you will receive a tracking number via email. You can track your parcel through the link provided by email.

Easy returns & exchanges  |  Full shipping & delivery policy →

Made on seamless circular machinery, our bras offer stretchy support and easy flexi-sizing, eliminating the need to select cup sizes separately. As our sizing is flexible, you can shop according to your usual band and cup size. 

If you don't know your approximate size, you can refer to our size chart for measurements. Simply measure firmly under your bust and comfortably around the fullest part of your bust to find your standard bra size from the chart below. Then select the corresponding B Free size in the product.


Underbust Overbust (inch)
(inch) US Size Cup A Cup B Cup C Cup D Cup DD
26"-28" 30 30"-31" 31"-32" 32"-33" 33"-34" 34"-35"
28"-30" 32 32"-33" 33"-34" 34"-35" 35"-36" 36"-37"
30"-32" 34 34"-35" 35"-36" 36"-37" 37"-38" 38"-39"
32"-34" 36 36"-37" 37"-38" 38"-39" 39"-40" 40"-41"
34"-36" 38 38"-39" 39"-40" 40"-41" 41"-42" 42"-43"
36"-38" 40 40"-41" 41"-42" 42"-43" 43"-44" 44"-45"
38"-40" 42 42"-43" 43"-44" 44"-45" 45"-46" 46"-47"
40"-42" 44 44"-45" 45"-46" 46"-47" 47"-48" 48"-49"
42"-44" 46 46"-47" 47"-48" 48"-49" 49"-50" 50"-51"
44"-46" 48 48"-49" 49"-50" 50"-51" 51"-52" 52"-53"
46"-48" 50 50"-51" 51"-52" 52"-53" 53"-54" 54"-55"


Underbust Overbust (inch)
(inch) US Size Cup DDD Cup F Cup G Cup H
26"-28" 30 35"-36" 36"-37" 37"-38" 38"-39"
28"-30" 32 37"-38" 38"-39" 39"-40" 40"-41"
30"-32" 34 39"-40" 40"-41" 41"-42" 42"-43"
32"-34" 36 41"-42" 42"-43" 43"-44" 44"-45"
34"-36" 38 43"-44" 44"-45" 45"-46" 46"-47"
36"-38" 40 45"-46" 46"-47" 47"-48" 48"-49"
38"-40" 42 47"-48" 48"-49" 49"-50" 50"-51"
40"-42" 44 49"-50" 50"-51" 51"-52" 52"-53"
42"-44" 46 51"-52" 52"-53" 53"-54" 54"-55"
44"-46" 48 53"-54" 54"-55" 55"-56" 56"-57"
46"-48" 50 55"-56" 56"-57" 57"-58" 58"-59"


If you are still unsure about your size after referring to this guide, email our friendly customer service team at contact@bfreeusa.com. Be sure to include your underbust and over bust measurements and the style of bra that you are interested in.


See How it Fits

See How it Fits