Union STR Bindings 2026 - Black
Flex Rating – 6 (1 Soft - 10 Stiff) Stage 5 | Duraflex – Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures. Exclusive to Union for snowsports products. EXT Thermoformed EVA Bushing – Multi-density bushings sustain their function each season - unlike urethane rubber or other materials that change color and become brittle over time. Extruded 3D Aluminum Heelcups – Designed for optimum heel hold and minimization of drag, Union 3D Extruded Aluminum heelcups are the strongest in the business. Canted Footbeds Stage 11 | Duraflex – Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures. Super lightweight, incredibly durable and perfect for beginner to advanced freestyle riding. Tool-Less FLAD TS 2.1 Tiles Toe Strap ExoFrame 3.0 Ankle Strap – Rapid response, trusted by professional snowboarders. Traditional Strap Adjustment Aluminum S2 with Steel Base Grade 8.8 Steel Hardware – The strongest steel available on the market, Union's use of Grade 8.8 represents a commitment to delivering the strongest and most reliable bindings on the market today. Camber Disk – 2x4, 4x4, and Channel compatible.Product Details
Flex
Baseplate
Highback
Straps
Buckles
Additional Features
Specs
X-Small
Small
Medium
Large
X-Large
US Men's
* - 5.5
5.5 - 7.5
8 - 10
10.5 - 13
13 - 15
US Women's
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
9.5 - 12
12 - 14
Euro
34 - 37
37 - 40.5
41 - 43
43.5 - 46
46 - 48
Mondo
21 - 23.5
23.5 - 25.5
26 - 28
28.5 - 31
31 - 33
