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Source Fc Snowboard Bindings 2027
Pickup available at Boutique Adrénaline
Usually ready in 24 hours
Size chart
Men's / Unisex Size Chart
| Size System | Small | Medium | Large | X-Large |
| US Men | 5.5 - 7.5 | 8 - 10 | 10.5 - 13 | 13 - 15 |
| US Women | 6.5 - 8.5 | 9 - 11 | — | — |
| US Kids | 5.5K+ | — | — | — |
| UK | 4.5 - 6.5 | 7 - 9 | 9.5 - 12 | 12 - 14 |
| EURO | 37 - 40.5 | 41 - 43 | 43.5 - 46 | 46 - 48 |
| MONDO | 23.5 - 25.5 | 26 - 28 | 28.5 - 31 | 31 - 33 |
Women's Size Chart
| Size System | Small | Medium | Large |
| US Men | up to 5.5 | 5.5 - 7.5 | 8 - 10 |
| US Women | 4 - 6.5 | 6.5 - 8.5 | 9 - 11 |
| US Kids | 3K - 5.5K | 5.5K+ | — |
| UK | 2 - 4.5 | 4.5 - 6.5 | 7 - 9 |
| EURO | 34 - 37 | 37 - 40.5 | 41 - 43 |
| MONDO | 21 - 23.5 | 23.5 - 25.5 | 26 - 28 |
Kids' Size Chart
| Size System | One | Mini | Small | Medium |
| US Men | — | — | up to 5.5 | 5.5 - 7.5 |
| US Women | — | up to 4 | 4 - 6.5 | 6.5 - 8.5 |
| US Kids | 7C - 11C | 11C - 3K | 3K - 5.5K | 5.5K+ |
| UK | 6 - 10 | 10K - 2 | 2 - 4.5 | 4.5 - 6.5 |
| EURO | 24 - 28 | 28 - 34 | 34 - 37 | 37 - 40.5 |
| MONDO | 13.5 - 17.5 | 17.5 - 21 | 21 - 23.5 | 23.5 - 25.5 |
Quick Specs
| Segment | Union Lab |
| Flex | 8/10, Very Stiff |
| Rider Level | Advanced to Expert |
| Weight (pair) | 1.13 kg |
| Mount Compatibility | 4x2 (Direct Connect System) |
| Sizes | M, L |
Product Description
The Source FC strips binding design down to its purest form. A full Forged Carbon footbed and highback, an S10 Halo Duraflex XC baseplate with carbon core, and a Direct Connect system that eliminates the disk entirely to bring the pair to 1.13 kg. Magnesium ratchets and titanium hardware hold every detail in place. For advanced and expert riders who refuse to leave energy on the table.
Product Details
| Baseplate | S10 Halo Duraflex XC with Forged Carbon core. Union's most premium nylon (Duraflex XC, partially derived from castor bean oil) in a Halo architecture around a full Forged Carbon core, delivering the lightest and stiffest baseplate in the Union lineup. |
| Bushing | Hi-Flex HP EVA. Hot-press EVA engineered for high performance: consistent cushioning, shock absorption, and responsive rebound underfoot, maintaining shape over time. Reduced volume design. |
| Footbed | Forged Carbon. Exclusive to Union, Forged Carbon exceeds the strength of injected plastic tenfold and is the only carbon material truly 3D-formed, enabling ultra-lightweight, high-performance construction. |
| Canting | None |
| Highback | S18 Source Forged Carbon. Full Forged Carbon construction throughout: ultra-lightweight and hyper-responsive with maximum stiffness and precision. |
| Forward Lean | Integrated 3-Stage. Three-stage forward lean adjustment built directly into the highback structure for quick, tool-free dialing. |
| Heelcup | 3D Forged Carbon. Full Forged Carbon heelcup for the lightest possible construction, maximum energy transfer, and precise heel hold. |
| Ankle Strap | Phantom Slim. Ultra-slim profile ankle strap engineered for minimal weight and maximum responsiveness. |
| Toe Strap | TS 6.0 Phantom. Slim, lightweight variant of the TS 6.0, with dual-layer compatibility and thermoplastic anti-slip rubber for secure boot grip. |
| Strap Hardware | Titanium screws. Lightweight, high-strength, and corrosion-resistant, used throughout for peak performance and long-term durability. |
| Ratchets | Magnesium S1 with aluminum base. Union-exclusive magnesium process produces a material four times stronger than aluminum at half the weight, with a fully protected spring for longer lifespan and optimized return. |
| Hardware | Grade 8.8 Steel and Titanium |
| Mount System | Direct Connect System. Two screws and two washers, no disk: reduces binding height for maximum board connection and delivers the fastest edge-to-edge energy transfer possible. 4x2 compatibility only. |
Warranty
Source Fc Snowboard Bindings 2027 FAQ
Is the Source FC really the lightest binding Union makes?
Yes, absolutely. At 1.13 kg (pair), it's the lightest snowboard binding Union has ever developed. Full Forged Carbon construction (highback, footbed, heelcup) eliminates weight while maintaining ultra-responsive performance.
What makes Forged Carbon so special?
Forged Carbon exceeds injected plastic tenfold in strength and is the only carbon material truly 3D-formable. It enables ultra-lightweight, precision-engineered components that transmit your movements directly to the board.
How is Source FC different from Source?
Source FC is all-Forged Carbon (highback, footbed, heelcup) with Duraflex XC nylon frame. Source Pro TH uses a blend (carbon core + nylon frame). Source FC is the ultimate performance, most aggressive Lab binding.
What's the 'Phantom Slim' ankle strap?
Phantom Slim is a ultra-slim, ultra-lightweight ankle strap exclusive to Source FC. Minimal weight, maximum responsiveness, perfect for advanced riders seeking board connection above all else.