| MEN’S/UNISEX |
- |
- |
- |
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 |
A more forgiving highback, wider ankle straps, and a nylon baseplate create a setup that’s comfortable, supportive, and still keeps the close connection to the snowboard.
S10 Halo Duraflex CB Baseplate w/ Duraflex CB Core
Built with Union’s exclusive two-layer baseplate construction, the S10 Halo Duraflex CB Baseplate on the Source pairs a Duraflex CB Frame with a Duraflex CB Core to create a traditional ride feel with balanced flex, reliable response, and all-day comfort.
Direct Connect Mounting System
A disk-free mounting system using just two screws and washers, reducing weight while providing strong, responsive energy transfer from rider to snowboard.
Hi-Flex HP EVA Bushing
More durable and more cushioned than traditional thermoformed EVA. Hi-Flex EVA bushings act as an additional layer of dampening and shock absorption between you and your snowboard and never lose shape over time. This reduced volume bushing design allows the rider to be as close to the topsheet as possible.
TS 6.0 Dual-Layer UltraGrip Toe Strap
Separating the exterior toe strap frame and interior rubber grip allows the rubber grip to form fit perfectly to any boot shape on the market today, while a new more integrated toe connector gives the the binding a more finished overall look.
Hybrid 2.0 Ankle Strap
The Hybrid 2.0 ankle strap features a unique V-cut design that flexes naturally with your boot, allowing for powerful forward lean without pressure points. Engineered for lightweight performance and built to last, it delivers the perfect balance of support and comfort.
Magnesium S1 Ratchets
Magnesium S1 ratchets are Union’s answer to the elements. A fully integrated spring protected from the harsh outside provides you with Union’s best ratchet to date. Longer life span and better spring return guaranteed.
S18 Source Duraflex Blue Highback
Constructed from eco-conscious Duraflex Blue nylon, the S18 Source highback offers an optimal blend of strength, reduced weight, and responsive performance. Weighing 15% less than standard Duraflex nylon, it enhances edge-to-edge transitions while delivering reliable control and confidence in all riding conditions.
