Ruffwear Front Range Flex Harness

Technical knit fabric. Like a shoe, not like a harness.
The 100% polyester knit body follows the logic of high-performance athletic footwear — flexible in all directions, lightweight, and free of the stiff seams that cause chafing. It moves with the dog with every stride, without restricting or shifting.

Minimal bulk. Chafing eliminated.
The knit construction reduces material to the absolute minimum — no extra layers, no seams at contact points. Your dog wears the harness and forgets about it.

Four adjustment points for any body type
The same system as the standard Front Range — four independent adjustments for a precise fit on athletic dogs, hunting breeds, or difficult body types. No pinching. No looseness.

Two leash attachment points for every occasion
6061-T6 aluminum V-ring on the back for everyday walks. TPU-reinforced webbing on the chest for greater control when you need it. One harness, two options.

Made to waste less
The knitting process itself eliminates the material trimming that standard cut-and-sew harness construction generates. More efficient, more responsible.

Visible when there's low light
Perimeter reflective trim and integrated loop compatible with The Beacon™ — no extra accessories.

Body: 75% polyester/25% nylon technical knit fabric
Webbing: 100% polyester (30% recycled)
Front leash attachment point: nylon webbing with molded TPU
Rear leash attachment point: anodized 6061-T6 aluminum V-ring
Buckles: ITW Nexus Mach 1 side-release (bluesign® certified)

Frequently Asked Questions

The standard Front Range uses ripstop fabric with foam padding—robust and durable. The Flex uses technical knit fabric inspired by athletic footwear—lighter, more flexible, and seamless at contact points. If you prioritize a harness that conforms to your dog's body with the least possible bulk, the Flex is the next step.

Yes. The 100% polyester knit fabric is designed for continuous daily use. The attachment points—a 6061-T6 aluminum V-ring and a molded TPU strap—are the same as on the rest of the Front Range line.

Yes. The four independent adjustment points allow for a customized fit for athletic dogs, hunting breeds, narrow chests, or deep chests.

Yes. The absence of rigid seams in contact areas and the flexible fabric significantly reduce the risk of chafing — especially on long walks or for short-haired dogs.

In standard harnesses, the fabric is cut from larger pieces, and the leftover material is discarded. Knitted fabric is constructed directly into the required shape—no cutting, no material waste.