Close up product shot of Targhee IV hiking boot featuring KEEN fusion technology
Close up product shot of Targhee IV hiking boot featuring KEEN fusion technology

A Bond That's Better for the Planet

KEEN.FUSION technology fuses the upper to the sole without toxic glues for a longer-lasting bond.

Close up of shot of Keen Fusion technology
No Glue

KEEN.FUSION uses heat and pressure, not toxic glues, to create a mechanical bond between the upper and the sole.

Two Targhee hiking boots going through machine-made flex tests
More Durable

Glue can deteriorate over time. KEEN.FUSION creates a bond that lasts longer.

Overhead shot of a large, metal shoe-making machine at the KEEN factory.
Less Energy Used

Data from our owned factories suggest that KEEN.FUSION construction requires 3.5 times less electricity use per pair.

How It Works

1 MIN WATCH: This short animation shows how KEEN.FUSION creates a longer-lasting construction without glue.

Our Most Durable Targhee Yet

Introducing the new Targhee IV. Built with KEEN.FUSION technology for zero sole separation.

Shop Targhee IV
Knee down shot of woman wearing tan Targhee IV hiking boots and walking over rocky surface.

Built Better

All work footwear in our American Built collection features KEEN.FUSION construction for an ideal blend of flexibility and durability.

Shop American Built
Product shot of Men's Independence work boot in front of tractor.

KNX: Fused for Flexibility

Our new barefoot-inspired sneaker features KEEN.FUSION construction for added durability and flexibility.

Shop KNX
Knee down shot of woman wearing green pants and Black KNX sneakers while walking on cement block