UNION Source 2026/2027: The Premium Binding Lineup
The UNION Source family represents Union's most refined all-mountain and premium binding options — built for riders who want the best materials, the best performance, and a binding that lasts season after season.
UNION Source 2026/2027
The Source uses Union's best materials — magnesium alloy baseplate, aluminum highback, premium strap system — in a binding that covers all terrain with authority. Available in multiple colorways including limited edition graphics.
- Flex: Medium-stiff
- Best for: All-mountain · Expert riders
UNION Source Pro Th 2026/2027
The Source Pro Th adds thermoformed ankle strap technology to the Source platform — a heat-moldable strap that conforms precisely to the ankle for a custom fit that eliminates pressure points and improves energy transfer. The most refined fit experience in the Union lineup.
- Flex: Stiff
- Feature: Thermoformed ankle strap
- Best for: Expert · Freeride · Riders who demand custom fit