This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

FREE SHIPPING on US orders over $70

Shopping Cart

Your cart is empty

Continue Shopping

That 'just right' level of stretch & support

Thunderpants 90% organic cotton/10% spandex fabric is milled in Australia at AMBT Mills and knit to our exact specifications. Our fabric is sturdy, very stretchy, and has great retention to give our undies just enough stretch and bounce back to stay up and on.


We use nylon thread so that your undies have enough stretch around the seams to get on and off with comfort.

Our organic cotton is Fairtrade as well as Global Organic Textile Standard (GOTS) certified.


Designed for wedgie-proof ultra comfort.

The cut of our full coverage undies fits the natural curves of your body so they sit in the crease of the leg. Our thicker fabric hugs the body without stretching or bagging. The cut puts them in the right place on your body for maximum comfort and the fabric keeps them there, so they don’t ride up or move about. We use the same soft organic cotton blend to cut our binding into a wide strip instead of using elastic so they don’t cut into your bum. 

See our Size Guide


Our custom prints are designed by textile designers we partner with throughout the USA. We also use some of the same prints as TPNZ designed in house or by Auckland based artist Greta Menzies.