The Quatro Socket

This patented, award-winning socket lets users easily adjust volume and compression with a simple dial.

What is the Quatro?

The Quatro Adjustable Socket delivers a customizable fit for comfort and mobility. Built with advanced 3D printing technology, it ensures durability, precision, and a natural gait, adapting seamlessly to changes in limb shape or activity level.

Why Quatro?

The Quatro offers unmatched personalization with patented compression technology and adaptable panels. Built for comfort, stability, and durability, it ensures confidence in every step and adapts to your evolving needs.

DURABLE

ADJUSTABLE

LIGHTWEIGHT

WEATHER-PROOF

Vertical Routing

How would you thread blinds?

Vertical is the only way that works.

Our patented longitudinal routing is more than just clever engineering, it delivers real benefits: fast donning and doffing, better alignment, and weight distributed where your limb can actually tolerate it.

Choose Your Color

Your prosthetic should feel like you, not just in comfort but in style too!

Thanks to AVID we can finish the Quatro Socket in a wide range of colors. This cerakoted blue socket is just one example of how you can make your fit stand out.

Magazine cover of "The O&P EDGE" featuring the Quatro Adjustable Socket with a colorful splash backdrop.

Person with a black Quatro Adjustable Socket prosthetic leg.

Close-up of a sleek, black prosthetic leg with intricate design and the word 'Quorum' embossed on it.

Close-up of a black prosthetic leg with adjustable Click dials and sleek design, placed on a white pedestal.

“Once I got into the Quatro Socket, it totally made sense to me.”

- Rustin Hughes
“The best fitting leg so far in 22 years!”

- Scott Nix
"This technology has allowed me to continue doing the sports I love."

- Tracy Hickey
“I feel very comfortable in these sockets!”

- Gerald Melaragno