Trulife Silk Triangle 471 Breast Form | Best-Selling Lightweight Silicone, Natural Drape

Confidence in a Best-Selling Breast Form

The Trulife Silk Triangle 471 Breast Form is one of our best-selling breast forms, chosen by women around the world for its combination of softness, lightness, and reliability. Made with Trulife’s signature Silk silicone, this form is their softest and smoothest yet—supple to the touch with a realistic drape that feels like you.

Its symmetrical triangle profile suits shallow to average cup depths and can be worn on either side, offering a versatile, balanced fit. The 471 is up to 30% lighter than traditional silicone forms, helping reduce shoulder, neck, and back strain during everyday wear. A gently concave back adapts to chest contours and accommodates tissue where needed, while the matte finish blends seamlessly under both underwire and soft-cup pocketed mastectomy bras.

Trusted for years as an everyday essential, the Silk Triangle 471 combines comfort, balance and confidence in one best-selling design.

Silk Silicone Surface: Incredibly soft, matte finish that mimics natural skin
Lightweight Comfort: Up to 30% lighter than traditional silicone forms
Symmetrical Triangle Shape: Fits either side; ideal for shallow to average cup profiles
Concave Back: Contours to chest wall and accommodates extra tissue
Natural Drape: Moves with your body for a seamless silhouette under clothing
Versatile Wear: Blends smoothly under both underwire and soft-cup bras
Wide Size Range: Available in sizes 1–17

sizing

Fit and Usage Insights

Because this form is about 30–35% lighter than standard silicone, you’ll notice less pull on your shoulder throughout the day. That lighter weight also means it can feel a little fuller in the cup at first — give it some wear time, and the edges will soften into place.
The concave back isn’t just for comfort; it really helps the form hug the chest wall, especially if you have thicker tissue or uneven contours after surgery. This keeps the fit looking smoother under clothes.
Always try the form in your go-to bras. In a soft-cup, the shape tends to look rounder, while underwire styles push the projection forward. A form that feels perfect in one bra might leave a small gap in another.
Don’t just check the fit standing still. Raise your arms, bend forward, twist side to side. That’s when you’ll see whether the edges are staying flush or if a different size or bra cut would give you a cleaner line.
Think of this as a shallow-to-average profile that adapts well. If your bra cup is cut lower or is less structured, expect a softer, rounder appearance. If the cup is firmer or deeper, the projection becomes more defined.