Women's Merino 150 Siren Bra

$36 ~~$60~~ In stock

Our best-selling bra with a comfortable and lightly supportive fit, the Siren Bra features our 150gm jersey corespun fabric, which uses merino wool fibers wrapped around a nylon core for added strength and durability, while retaining next-to-skin softness. We've added a touch of LYCRA® for active stretch. The Siren’s sleek design and no-side-seam construction is perfect for everyday comfort and easy layering, while its thin adjustable elastic straps make for a barely-there feel.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Abigail V. ★★★★★ Oct 22, 2026

The fit is spot on for lounging and light yoga, and the merino/nylon blend holds its shape wash after wash. I've worn it twice and it doesn't feel scratchy at all.

Sophia B. ★★★★★ Oct 21, 2026

The corespun fabric is the real deal here—it's held its shape through a dozen washes without a single pill, and the lightweight support is exactly what I need for everyday wear. I honestly forgot I had it on by mid-morning, which is the highest praise I can give a bra.

Thomas I. ★★★★★ Oct 20, 2026

The fabric blend is genius—the merino wraps around that nylon core so it holds its shape wash after wash, no stretching out between wears. I can wear it for two days straight without it smelling, which is huge for me.