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Source Pro TH 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 | Lab |
| Rider Type | Freestyle / All-mountain, intermediate to advanced |
| Flex Rating | Stiff (7/10) |
| Weight (Pair) | 1.40 kg |
| Binding Style | Freestyle / Freeride |
| Mount Compatibility | 4x2 |
| Mounting System | Direct Connect System |
| Canting | No |
| Sizes Available | M, L |
Product Description
Built in collaboration with Torstein Horgmo, the Source Pro TH is Union's pro-level statement for riders who refuse to pick a lane. The all-new S18 Source TH Duraflex Blue highback brings an asymmetrical freeride wrap with a playful, freestyle-tuned feel, while the Hybrid 3.0 ankle strap with its redesigned hinge connector locks in your boot with surgical precision. Underneath, the S10 Halo Duraflex CB baseplate pairs a Forged Carbon core with Union's lightest frame ever for explosive edge-to-edge response. For technical freestyle and big-mountain crossover riders who demand pro-level hardware.
Product Details
| Baseplate | S10 Halo Duraflex CB with Forged Carbon Core: two-layer construction combining a Duraflex CB carbon-injected nylon frame (highest fiberglass content in Union's lineup for precise, lightweight response) with a Forged Carbon core (exclusive to Union, exceeds injected plastic strength tenfold, the only carbon material truly 3D-formed). Union's lightest baseplate ever built, reduced height for maximum board connection, fastest edge-to-edge energy transfer possible, with central connection for complete integration. |
| Bushing | Hi-Flex HP EVA: hot-press EVA material engineered for high performance, delivering consistent cushioning, shock absorption, and responsive rebound underfoot while maintaining shape over time. Reduced volume design that never loses shape. |
| Footbed | Forged Carbon: exclusive to Union, exceeds the strength of injected plastic tenfold and is the only carbon material truly 3D-formed, enabling ultra-lightweight, hyper-responsive underfoot performance. |
| Highback | S18 Source TH Duraflex Blue: asymmetrical freeride wrap design in Duraflex Blue eco-conscious nylon (made from 90% sustainable raw materials, audited by ISCC and TÜV NORD). Delivers a more playful, freestyle-focused feel compared to the Source FC. Integrated 3-Stage Forward Lean Adjustment built in. |
| Forward Lean Adjustment | Integrated 3-Stage: three-stage forward lean adjustment built directly into the highback construction for tool-free, on-the-fly tuning. |
| Heelcup | Extruded 3D Aluminum: 100% pure aluminum construction maintains its true shape under heavy wear and tear, providing durable and lightweight precision heel hold and stability. |
| Ankle Strap | Hybrid 3.0 with HP Core: all-new hinge connector design for a more precise fit interface. Hot Press EVA core for cushion and comfort. Lightweight and responsive support. |
| Toe Strap | TS 6.0 Dual-Layer UltraGrip: dual-layer construction for a perfect boot fit across all boot shapes. Thermoplastic anti-slip rubber for maximum grip. Multi-positional and compatible with all boots. |
| Strap Adjustment | Pins and Quick-Lock system. |
| Ratchets | Magnesium S1 with Aluminum Base: Union-exclusive magnesium process produces a material four times stronger than aluminum at half the weight. Fully protected spring for longer lifespan and optimized spring return. |
| Hardware | Grade 8.8 Steel and Titanium: Grade 8.8 is the strongest steel commonly available for critical binding components. Titanium provides lightweight, high-strength, corrosion-resistant reinforcement. |
| Mounting System | Direct Connect System: ultra-lightweight design using two screws and two washers (no disk required). Improved reaction speed and reduced binding height for maximum board connection. Compatible with 4x2 inserts only. |
| Pro Model | Torstein Horgmo |
Warranty
Source Pro TH Snowboard Bindings 2027 FAQ
What's the Torstein Horgmo signature about on Source Pro TH?
Source Pro TH is designed with Torstein Horgmo for a freestyle-focused Lab binding. It features an S18 Source TH Duraflex Blue highback with more playful, freestyle-focused feel than Source FC. 7/10 flex with 9/10 freestyle, 10/10 performance score.
How is the Forged Carbon core in the baseplate different from Source?
Source Pro TH's S10 Halo baseplate has a Forged Carbon DCS core inside a Duraflex CB frame. This two-layer construction delivers ultra-lightweight performance (1.40 kg pair) with maximum board connection via Direct Connect System.
Is the Hybrid 3.0 hinge ankle strap comfortable?
Yes. The all-new Hybrid 3.0 with HP Core features a hinge connector for improved boot fit and a Hot Press EVA core for cushioning. Lightweight, responsive, and supportive all day.
Does Source Pro TH require a specific boot type?
No. Like all Source Lab bindings, it works with any standard 4x2 snowboard boot. Direct Connect is a mounting system, not boot-specific like Step On is.