Updated February 2022
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
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HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

30
Models
Considered
65
Consumers
Consulted
28
Hours
Researched
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Whether you prefer thongs, bikinis, or boyshorts, one thing we can all agree on is that pantie lines are the absolute worst. No matter how fire your outfit is, a visible pantie line can quickly ruin everything. Luckily, there are a variety of seamless panties on the market to keep all of your outfits looking smooth and flawless. For the best no-show fit, look for underwear with flat-stitched seams that are made from thin, stretchy materials. Fabrics like spandex are ideal because they naturally conform to the shape of the body. 

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