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Foam Breast Forms

Foam Breast Forms

Regular price $65.00 USD
Regular price Sale price $65.00 USD
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These Foam Breasts are perfect for those who haven’t tried silicone forms; they are also ideal for achieving the shape you want without the heft of silicone!


Shipping & Returns


Orders may take 3-5 business days to be processed and ready for shipping or local pickup. You will recieve a completion email when your order has shipped, or is ready for local pickup.

All items are shipped fully covered in discreet envelopes or boxes. The return label will read from AYLI.


Due to the intimate nature of our products, we do not accept returns for customer satisfaction reasons. Most of our products with a mechanical component have a manufacturer warranty. If you receive a defective product, or if it breaks within the warranty, please reach out to the manufacturer to fulfill your warranty.

For more information, please read our Shipping and Local Pickup Policy, as well as our Return and Refund Policy.

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These Foam Breasts are perfect for those who haven’t tried silicone forms; they are also ideal for achieving the shape you want without the heft of silicone!

Transform created the Triangle Foam Breast Forms to fit easily and be worn interchangeably based on your needs. They are soft, lightweight symmetrical foam forms that can fill out any bra. These are great for those who have never worn silicone forms or for when shaping is needed but not the weight. Perfect for dancing and physical activity; they can even be hand washed!

Choose between sizes 4, 6, and 8 and receive a pair in Cream color. The polyurethane foam keeps the forms light while holding the shape you need. Each form comes to a small molded nipple for an authentic appearance.

How to Choose and Fit the Correct Breast Prosthesis and Bra

Everyone wants to look great in their clothes, and wearing the right undergarments can make all the difference in how an outer garment looks and fits. Different prosthesis styles will fit differently in different style bras. Therefore, the most important things before choosing a breast prosthesis are to fit the right bra size and choose the right bra style. Measure yourself in the following manner to determine our approprate bra size.

Measure to Determine your Bra Band Size

  • Using a tape measure, measure around the rib cage under the pectoral muscles where the natural breast tissue joins the body. Take a snug measurement. (This would be where the band of the bra fits around the chest.)
  • Add 5 inches to this measurement.
  • Example: Chest Measurement = 36" Add 5" Estimated band size = 41".
  • Bra bands come only in even numbers, so this person would try on a 40 or 42 to see which works best. All bras stretch differently.

Choose a Cup Size

  • The Band Size stays the same, no matter how large or small you want your breasts to be. For the size of the breasts, choose a cup size letter.
  • Consider height, weight, and figure style. If you are 5'10" tall and a 42-46 bra size, generally choose a C, D, or DD cup bra. If a size 34, 36 or 38 bra, choose a cup that balances the figure like a B or C cup. If you choose a cup size that is too large for a small frame, it may be harder to buy clothes. If you choose a cup size that is too small, and you have wide shoulders, or a big waist, your forms will not fill out your clothes.

If you know your best ladies' dress size, use the chart below to find a suggested cup size. Everyone is different, but the suggested sizes are a great place to start.

Shirt Size Ladies' Dress Size Suggested Cup Size
0 A
4 A or B
6 B
10 C
12 C
Large 14 C or D
16 D
X Large 18 D or DD
20 DD
22 DD
2X Large 24 DD
26 DD

After you choose your cup size, use the chart below to find the corresponding breast form size. Breast form sizes vary by style with some up to size 14. See individual product descriptions. If two sizes are suggested (ie. 2/3) try both to see which fits best for you.

Bra Sizing Chart


(70 cm)


(75 cm)


(80 cm)


(85 cm)


(90 cm)


(95 cm)


(100 cm)


(105 cm)


(110 cm)


(115 cm)

A 1/2 2/3 3/4 4/5 5/6 6/7 7/8 8/9 9/10 10
B 2/3 3/4 4/5 5/6 6/7 7/8 8/9 9/10 10 11
C 3/4 4/5 5/6 6/7 7/8 8/9 9/10 10 11 12
D 4/5 5/6 6/7 7/8 8/9 9/10 10 11 12 13
DD 5/6 6/7 7/8 8/9 9/10 10 11 12 13 14

Putting Forms Into a Regular Bra

  • Lengthen the bra strap on one side.
  • Pull the cup away from the chest wall.
  • Insert the form from the inside top of the cup. Turn the form in the direction that best fills the bra cup and looks the most natural. Repeat on the other side.
  • After forms are in place, adjust the straps on each side.
  • Look at the fit. Both sides should match and the bra cups should cover the prosthesis completely. The prosthesis top tapers should prevent clothing from sinking in. Each form should fill and not bulge at the top of the cup; plus, the forms should settle into the bottom of each cup. The straps should not cut into the shoulders.
  • If the forms are too big, too small, or do not fill where they need to fill, try another style or size of form.

Putting Forms into a Pocket Bra

  • Spread the bra out on a flat surface with the inside of the bra facing you.
  • Hold the form by the edges with a flat hand so that the nipple is facing down.
  • Spread the elastic on the cup and slide the form in so that the nipple faces outward.
  • Adjust the form so it settles into the bottom of the cup.
  • Hold the bra up with the form inside the pocket to make sure it looks correct.
  • Be careful not to puncture the form or fold it. TRANSFORM® silicone forms are very durable, but the polyurethane skin can be punctured.