Workout Essential
"This is already my 5th order! 😍 Super comfortable, seamless and perfect under leggings. Absolutely love wearing these for my workouts!"





for all orders over $150 AUD
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.
82% BAMBOO, 13% NYLON, 5% ELASTANE
SHIPPING
Orders with a subtotal over $150 AUD will be provided with a free shipping option in checkout. Please know that the cost of shipping is calculated at checkout and based on delivery location and weight.
Parcels being sent outside of Australia may be subject to customs, duties and taxes. Please read more regarding this here.
RETURNS
At CSB, we want you to love your pieces! If something isn’t quite right, you’re welcome to return your order within 30 days of delivery, provided it meets our Return Eligibility Requirements.
Read more on the Returns Policy here

Overall rating: 4.841133 / 5 from 812 reviews.
The Seamless Bamboo Thong in Sand is praised for its seamless design, breathable and lightweight fabric, and perfect fit for activewear. Customers appreciate its hypoallergenic properties and luxuriously soft feel, making it a comfortable choice for everyday wear.
Review topics: ["size","fit","design","colour","fabric","material","feel","lines","quality","look","style","price","stretch","comfort","shape","leggings","cut","band","wear","shipping","underwear","thong","undies","seamless","camel toe","range","seam","pair","shorts","strings"].
"This is already my 5th order! 😍 Super comfortable, seamless and perfect under leggings. Absolutely love wearing these for my workouts!"
"These are honestly the comfiest underwear I have! They still hold their shape after 1 year."
"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."
"Soft thick but thin all at the same time"
"These are honestly the comfiest underwear I have!"
"These are honestly the comfiest underwear I have!"
"Perfect for gym wear to everyday wear"
"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."
"Happy with the purchase"
"Satisfied with the purchase"