Women's Merino 150 Siren Thong

$25.55 ~~$35~~ In stock

A stretchy, ultra-comfortable thong for minimalist comfort, the Siren Thong features our corespun merino wool blend fabric for durable, super-soft performance during active or casual use.

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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 (5.0 / 5 · 5 reviews)

Adam S. ★★★★★ Oct 22, 2026

The corespun merino blend is noticeably softer than other wool underwear I've tried—it doesn't itch at all. Stretches just enough to stay put during yoga without digging in. My new daily go-to for active days.

Sophia Q. ★★★★★ Oct 21, 2026

I wore these on a long hike and forgot I had them on—the corespun fabric really does move with you without bunching. They’ve held up well after several washes too.

Ryan I. ★★★★★ Oct 20, 2026

It’s ridiculously soft on the skin and the merino blend stays put during my morning runs without any bunching. I’ve washed it a few times already and it still feels just as stretchy and smooth as day one, which is rare for this style.