Union STR Snowboard Binding Enjoy every aspect of the terrain with this exceptional binding from Union. The STR is the perfect introduction to all-mountain riding. It features a responsive Stage 5 Duraflex baseplate and a tuned S11 Duraflex highback to give you a balanced ride. The Exoframe 2.0 upper strap is extremely durable, keeping your foot in a locked position, giving you the perfect confidence to perfect your technique whether you're a beginner or have done a lot of riding. Specs Flex: 6/10 Riding Category: All mountain 10/10, Freestyle 7/10, Freeride 5/10 Baseplate: Stage 5 Duraflex - All-day comfort and responsiveness for all-mountain descents. A bulletproof baseplate that was created for high durability. Highback: S11 Duraflex - like the baseplate, the highback is moderately stiff for balanced flexibility and response. It allows you to quickly cut arcs and is comfortable at the same time. Ideal for beginners and advanced riders. Tilt adjustment option (FLAD). Heelcup: Extruded 3D aluminum - Designed for optimal heel hold, minimal drag and efficient response. Bushings: EXT Thermoformed EVA - Shock-absorbing EVA lining protects your heels and supports the natural and even bending of the board. Ankle Strap: Exoframe 2.0 - A popular strap that is lightweight and durable. Provides a firm grip for a great riding experience. Bottom strap: TS 1.0 Hexgrip - Non-slip and adaptable thermoplastic strap that can be fixed in multiple positions. Ratchets: Aluminum - They are reliable, allow easy handling and withstand long-term load. Screws: steel 8.8 Disc and compatibility: Camber disc is compatible with 4×4, 4×2, Channel inserts Inclined insole by 3° - support for the anatomical alignment of the knees, a more natural position for the joints