The patented DUO cinch system in a light, padded, everyday build - for dogs 50 lbs and under. Two models — one for pulling, one for backing out. Ships in 1–2 days, from $74. Free shipping.
See DUO PRO ->
XS - M . from $74 . Not sure which size? Use our Sizing Guide ->
The patented cinch, in motion
Under leash tension the harness cinches and redirects your dog's pulling energy back toward you -- control without pressure on the neck.

DUO Direct -- our no-pull cinch redirects pulling energy back toward you.
Great for small, lean, or narrow dogs that slip and pull.
Why not a $30 harness for a small dog?
Because a $30 harness loosens at the exact moment it matters. When a dog plants, reverses and drops a shoulder, a standard harness slides forward over the head. That is not a quality problem. It is a geometry problem, and no amount of padding fixes it.
DUO holds a US patent on a cinch that does the opposite. It contracts under pull or an escape attempt, then stops at a mechanical hard stop -- so it holds without ever becoming a choke.
" Sunny is still learning that the world isn’t so scary, so having a harness that gives us better control while keeping him comfortable has been really helpful during training and walks. We especially appreciate how secure it feels without restricting his movement." Caroline C.US Patent granted 2022See how the cinch works ->
Sunny · 15 pounds · size SM
DUO Essentials vs DUO Pro
Different dogs, Different lines.
| DUO Essentials | DUO Pro | |
|---|---|---|
| Made in | Designed in California, made overseas | Handmade in USA |
| Hardware | Durable plastic | Steel, Mil-Spec |
| Price | $74+ | $132+ |
| Ships | 1-2 days | Made to order / 2-3 weeks |
| Best for | Smaller, narrower dogs, up to 50 pounds | Heavy duty, giant breeds, hard pullers, 50+ pounds |
Giant breed, working dog, or destroyed every harness you've owned -- look at Pro.
Learn more about how our patented harnesses work
Our DUO DIRECT and ADAPT are patented no pull / no escape solutions with unique functions. Learn more here.



