Underdays | Breathable and comfortable everyday TENCEL

The Thong Starter Kit

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$52.08 $84 In stock

This is for you. A first-timer’s exclusive to experience Underdays, thoughtfully designed with your health, comfort, and style in mind. The Starter Kit includes 3 thongs, and a pouch that’s perfect for storing your essentials—the perfect introduction to the underwear brand that is changing the game.

Before you pay

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When it ships

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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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If you need a refund

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Please contact us for the refund processing timeframe before returning an item.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.6 / 5 · 5 reviews)

Isabella N. ★★★★★

I was nervous ordering my first thongs but the fit is way more comfortable than I expected. The three-pack gives you enough variety to figure out what you like, and the pouch is a nice touch for travel.

David ★★★★★

The pouch that came with these is way handier than I expected — I just toss the spare in my gym bag. Three pairs felt like the right amount to figure out if I actually like the fit before committing to more.

Matthew A. ★★★★★

I was nervous about switching to thongs but these converted me on day one. The three-pack in the starter kit gave me enough to rotate through the week, and the little pouch is handy for travel.