Seamless Thong

216 Reviews

“The comfiest workout underwear I've ever worn"

Color: Black

💞  3 for £45 £30 (1 Free pair)

💞  6 for £90 £55 (2 Free pairs)

💞  10 for £150 £90 (4 Free pairs)

Choose any cut or color and your discount will be automatically applied in cart.

For all CiCi's existing customers, we advise going up a size.
For in-between sizes, we also recommend you size up.
XS 4-6 0-2 33 in
83 in


8 4
35 in
88 cm
M 10-12 6-8
37-39 in
93-38 cm
L 14-16 10-12
41-43 in
103-108 cm
XL 18 14-16
45 in
113 cm
Seamless BRIEF is true to size. 
Seamless THONG runs small. We recommend going up a size.

The comfiest g-string you will ever own!
What is it?

  • Actually Seamless - Zero seams anywhere you can see
  • New and improved elasticity that will hug your body and last forever 
  • Super silky, soft, and stretchy underwear that moves with you
  • No VPL (Visible Panty Line)
  • No red lines from underwear digging in
  • Comfortable and completely seamless!


CiCi's Seamless collection guarantees no visible panty line and thanks to our unique design — no seams down the side of your hips.

Perfect for going for a night out, wearing under gym gear, or anything tight when you want to feel your best!


Featuring a 100% organic cotton gusset for maximum breathability. The underwear structure is 74% nylon and 26% spandex.

Supporting a good deed

  • For every pair you purchase, we donate a pair to women in need

For every pair purchased we donate a pair to women in need.

Did you know?

Almost 60% of female refugees do not have access to underwear.
Underwear is one of the most requested items by the homeless.
Menstrual management is a challenge to many indigenous women due to systematic and cultural barriers.

Women have to fight for so many rights and issues. Having access to underwear should NOT be one of them.


We are here to enable strong women to support women in need. For every pair purchased we donate a pair to a woman in need.

We want to make access to underwear one less hurdle that women have to jump over.

With your help, we can provide all women with access to multiple pairs of underwear, just like they deserve.

We have a 7-day return policy, which means you have 7 days after receiving your item to request an Exchange or Return.

To be eligible for a return, your item must be in the same condition that you received it, unworn and unused, and in its original packaging. You’ll also need the receipt or proof of purchase. Orders made using a discount code are only eligible for store credit—no exchanges or refunds will be provided.

Exchange/Returns Process

  • As long as all of them (except the one pair you tried on) are still in the original sealed packaging we can exchange/refund all of them for you.
  • Put a big "X" on the packaging of the one you opened so we know which ones they are.
  • All you need to do is ship it back to us.

Send an email and we’ll sort you out 😘


We always do our best to ship your items right away and shipping times may vary. Standard shipping within Australia 2-7 business days, New Zealand 5-12 business days. If you need your items by a certain date/ASAP, we recommend upgrading to Express Shipping. 💕 

Seamless Thong

Join 1000’s of happy customers

You heard it here first!

"I cannot speak highly enough of these undies! As a new, first time mumma I was struggling to find something comfortable and that made me feel sexy - until I came across Cici! Putting these on was the first time since bub that I was truly comfy and feeling sexy and being seamless, they can go under literally everything without being seen. I also LOVE that they’re pair for pair - such a great and important initiative. Thank you for helping me get my confidence back Cici!"


"Perfect for girls that live in activewear! I am so happy with the quality of the fabric… I was impressed even the fuller brief cut didn’t show! The best underwear I have received! Lives up to its word. Seamless, Comfortable and super stretchy, AMAZING fit!"



I am so fussy with comfort of underwear esspecially gstrings but I’ve never worn something so comfortable in my life. The quality is like no other, being seamless I can wear under my sports wear to the gym and they’re actually gorgeous colours aswell!! I will never purchase any other underwear again and the cause and purpose of donations makes it that much more worth it!"


"These undies are sooo dang comfy!!!!
It feels like I am wearing nothing because they are so soft, and yay for no more indents on my hips!
Glad I ordered 12 pairs - no regrets!"


"My partner loves her Cici's - buying more!

I bought my partner some of these for her birthday. I thought it was an awesome concept to buy her something nice and also help women in need. She totally loves them! She is ordering lots more because she's been looking for an awesome pair of sexy and comfy undies that suit all occasions. Love the concept and my partner loves her new undies."


"Best undies I've ever owned!

I initially only bought 3 pairs because I really liked the neon pink colour, but I had no idea I would've like them as much as I do! I mean, not only the colour is stunning, they are also the most comfortable everyday undies I own. They fit so well and are so light weight I don't even feel them. They're are very flattering too. 11/10. I didn't even think I could like undies as much as I like my cici's 🤩"



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