BoneZZZ Men's Flex Slippers in Mossy Oak Bottomland pattern, sitting on a wooden trunk.

The Difference Is ZZZGel

What is ZZZGel? In short, ZZZGel is an eco-friendly, soy-based formula that helps reduce the stress on joints and allow the wearer to stay on their feet longer and recover faster.

Shock Absorbant

ZZZGel is made of interconnected, energy dissipating molecules. These structures, called cross-links, allow the gel molecules to move freely around one another while remaining linked. ZZZGel absorbs and dissipates force as the energy of the impact flows horizontally through the gel, similar to ripples on a pond.

Diagram of the liner, sole, two foam layers, and the ZZZGel layer within each pair of BoneZZZ Men's Flex Slippers.
Man wearing his BoneZZZ Men's Flex Slippers, in Mossy Oak Bottomland pattern, as he puts more wood in the fireplace.

Temperature Resistant

ZZZGel disperses heat energy horizontally through the gel up to temperatures of 200F, higher than the boiling temperature of water. Likewise, in temperatures as low as -15F, ZZZGel retains its energy absorbing properties.

Close-up of a man slipping his bare feet into his pair of BoneZZZ Men's Flex Slippers, in Mossy Oak Bottomland pattern.


ZZZGel’s surface is inhospitable to the growth of bacteria and fungi. Testing has indicated a 100% inhibition to both types of microbes.

Environmentally Friendly

ZZZGel is an inert, non-toxic material made from soybeans that does not require a high temperature to manufacture.