Here are our Black Onyx thermal conditioning cap options – they come in different size and sets. All Lava Caps have the same functionality, so just select the colour you prefer and enjoy your next wash day!


Onyx Heat Cap Usage Tips: Lava Cap is reusable, but do not heat your Lava Cap for more than 2 minutes on each use, 80-90 seconds usually achieves good results but microwaves can vary.


The colour inspiration for the Onyx thermal conditioning cap is the natural mineral onyx – which can sometimes be a deep black, making for a classic, timeless heat cap suitable for all tastes 🖤

Want £££ Off?

Sign up to our mailing list!