Better than I expected
"So comfy and high quality. I was expecting them to be the really thin and seamless ones that are cheaper feeling but they’re definitely not."





for all orders over $150 (USD)
within 30 days (exclusions apply)
Our new and improved seamless thong, now made from a bamboo blend. Not only this, we have perfected the fit making these your go-to underwear for under your activewear.
- Seamless
- Breathable and lightweight
- Moisture-wicking to help you stay dry and comfortable
- Hypoallergenic
- Luxuriously soft and smooth
- Second skin feel
- Made from Bamboo/Nylon/Spandex blend
Please note that due to hygiene reasons this product cannot be returned or exchanged.
FREE SHIPPING ON ORDERS OVER $150 USD
Enjoy free standard shipping on all orders with a merchandise subtotal of $150 USD or more. Eligible orders will automatically receive a free shipping option at checkout.
Shipping costs for orders below this threshold are calculated at checkout based on your delivery location and parcel weight.
Duties and taxes are prepaid where available. If included, your selected shipping method will display "Duties & Taxes Prepaid" at checkout.
If this label is not shown, any applicable duties, taxes, or import fees will be payable by the recipient upon delivery.
30-DAY RETURNS
We want you to love your CSB pieces. If something isn't quite right, you can return eligible items within 30 days of delivery for a refund, store credit, or exchange, subject to our return policy.
Refund Eligibility
Please view our full Returns Policy here.

Overall rating: 4.83875 / 5 from 800 reviews.
The Seamless Bamboo Thong in Black is praised for its seamless design, perfect fit, and luxuriously soft feel. Customers appreciate its breathable and moisture-wicking properties, making it ideal for activewear. The high-quality bamboo blend material ensures comfort and hypoallergenic properties.
Review topics: ["size","fit","fabric","colour","material","design","quality","line","look","feel","shape","leggings","comfort","style","cut","shorts","band","stretchy","underwear","thong","undies","seamless","camel toe","wear","range","seam","clothes","pair","strings","work"].
"So comfy and high quality. I was expecting them to be the really thin and seamless ones that are cheaper feeling but they’re definitely not."
"The quality of the seamless underwear is great for activewear, and I like that they have a different range of colors to choose from as well so you can match it with the color of your bottoms. Good to get a combo of CSB leggings and their underwear in the same color. Take your usual size, it’s super stretchy and can wear it under your gym bottoms as the lining is mostly invisible."
"The quality of the seamless underwear is absolute perfection, and I like that they have a different range of colors to choose from as well. Take your usual size, it’s super stretchy and can wear it under your gym bottoms as the lining is mostly invisible."
"This thong is great for the gym, love that the material is made from bamboo; it looks and feels well made. You can barely see the lining through the leggings since it’s seamless. It definitely lessens the camel toe especially when wearing light leggings"
"Perfect to wear under tights or shorts"
"High quality and very comfortable for everyday use."
"This bamboo underwear looks so flattering on the buttocks. It adds this perfection form complimentary to the crunchy leggings. I’ve been browsing websites for a good pair that does not show cameltoe and this is the winner!"
"Really comfortable! Love that it doesn’t show when wearing activewear. Nice stretch as well, fits perfect also! Great quality."
"The way this thong sits underneath your belly, if you do not have a completely flat stomach these underwear will roll down! I would not repurchase these or recommend. Unfortunately this was part of my first (and last) CSB purchase as every single item ordered is unusable, every single item rolls up or down and the sizing is way off on everything. I am a petite woman. I am 5'0 and a size 26 or a small in waist. I ordered a small as recommended per the size chart in these panties and not only does the top roll down but the gusset area is way too small as in almost a frontal thong if you will. ."
"I have so many pairs of these now! Honestly the best under thights or for any tighter outfit. No lines"