Who it's for: Engineered for intermediate to advanced all-mountain riders who crave ultra-lightweight hardware, minimal stack height, and unmatched board feel. Ideal for riders wanting the high-performance innovations of Union's Lab series paired with an accessible 6/10 flex that excels across groomers, side-hits, and alpine bowls.

Next-Gen Diskless Precision & Ultra-Low Stack Height

Positioned at the cutting edge of modern binding design, the 2027 Union Source introduces Union's revolutionary Direct Connect System to everyday all-mountain charging. Built for laying down responsive carves on fresh SilverStar groomers, maneuvering through tight tree lines at Big White, or riding variable high-alpine terrain up at Revelstoke, the Source delivers near-zero stack height and lightning-fast edge-to-edge response without sacrificing all-day comfort.  

• Disk-Free Direct Connect System: Eliminates traditional mounting disks entirely by utilizing a 2-screw, 2-washer setup that mounts directly into 4x2 pattern boards, drastically cutting stack height and overall weight.

• Ultra-Light S10 Halo Duraflex CB Baseplate: Carbon-injected nylon frame provides explosive energy transfer while standing as Union’s lightest baseplate architecture.

• Eco-Conscious S18 Duraflex Blue Highback: Asymmetrical freeride highback made from 90% sustainable mass-balance raw materials, offering a smooth, supportive flex with an integrated 3-stage forward lean adjuster.

• Pressure-Free Hybrid 2.0 Ankle Strap: V-cut design flexes naturally over boot uppers, utilizing a supportive TPE core to distribute power evenly without pinch points.

• Waterproof Non-Stick HP EVA Footbed: Closed-cell hot-press EVA construction repels snow and ice build-up, maintaining a clean footbed surface in cold BC riding conditions.

• Magnesium S1 Ratchets & Titanium Hardware: Union’s exclusive magnesium ratchets deliver 4x the strength of aluminum, paired with Grade 8.8 steel and titanium hardware for ultimate durability.