10 Best Period Underwear 2025 in the United States

Bambody Period Underwear is designed specifically for women and teens experiencing heavy flow, offering a comfortable and sustainable alternative to traditional menstrual products. One of its key strengths is the absorbency, as it can hold the equivalent of up to four regular tampons, making it suitable for all-day wear or overnight use. The underwear is made from a soft rayon material, which ensures breathability and comfort, so you won’t feel bulky while wearing it. Its full coverage design provides good leak protection, which is essential for peace of mind during various activities, whether at work, school, or during sleep.

There are a few considerations to keep in mind. While the underwear is marketed as capable of being the sole form of protection, some users may still prefer a backup option like pads or cups for particularly heavy days. The sizing might also vary, so it's crucial to refer to the sizing chart before purchasing to ensure a proper fit.

Care instructions are straightforward, as the underwear can be rinsed and washed with regular laundry, which is a plus for convenience and environmental sustainability. However, air drying is recommended to prolong the life of the product, which may not be as convenient for everyone.

Bambody Period Underwear is ideal for those seeking a reliable and eco-friendly menstrual product. Its comfort, high absorbency, and ease of maintenance make it a strong contender in the period underwear category, particularly for teens and women looking to simplify their menstrual management. Just be mindful of sizing and consider your flow needs when deciding if these will be your primary protection method.

The OVRUNS Period Swimwear Leakproof Bikini Brief Bottoms cater to women, teens, and girls seeking confidence during water activities without worrying about leaks or stains. These bottoms boast a built-in fast-drying absorbent liner that can hold up to 10 ml of period flow, equivalent to two small tampons, making them suitable for light leaks and period days. The organic liner ensures no odors or plastics, enhancing comfort and environmental friendliness.

The fabric is innovative, recycled, and aquaphobic, providing waterproof protection and UPF 50 sun protection, which is ideal for outdoor water-based activities. The swim bottoms are available in high waist and mid waist styles, offering versatile choices for different comfort preferences and body types. They feature a thick, supportive waistband and full back coverage, which are designed for a flattering fit and added security.

In terms of care, they require washing before use, with similar dark-colored garments at 30 to 40 degrees, and should not be tumble-dried or treated with fabric conditioner, which might be a slight inconvenience for some users. Made of 85% Nylon and 15% Spandex, these bottoms promise durability and stretch. However, their absorbency might not suffice for heavier flows, and they are best suited for lighter days or as a backup. These swim bottoms are made in China and have been available since April 2023, positioning them as a relatively new option in the market for period swimwear.

The Bambody Absorbent Panty in X-Large offers a great balance of comfort and functionality for period underwear users. Made from bamboo rayon and spandex, it feels soft and breathable, avoiding the bulkiness often found in similar products. Its 4-layer design can absorb up to the equivalent of 4 regular tampons, making it suitable for light to moderate flow days or as a backup with other protection like tampons or cups.

The full coverage, stretchy style provides good security against leaks, working well for daytime or overnight use. The product is easy to care for, being machine washable and quick to rinse, though air drying is recommended to keep them lasting longer. While the panty is designed for adults and teens, those with heavier flows might need additional protection since it targets moderate absorbency.

These panties serve as a solid choice for anyone looking for reusable, comfortable period protection that fits like regular underwear and simplifies care routines.