Built To Charge
The STR is the perfect intro to Union's All-Mountain binding category.
Ride the entire mountain without breaking the bank. The STR is the perfect intro to Union's All-Mountain binding category. A responsive Stage 5 Duraflex baseplate, paired with the supportive S11 Duraflex highback, and super durable Exoframe 2.0 ankle strap, will keep you feeling locked in and ready to power through whatever the mountain can throw at you.
S11 Duraflex Highback
The perfect blend of flex and response for riding the entire mountain. The S11 Duraflex highback is ideal for beginner to intermediate riders looking to up their game.
Exoframe 2.0 Ankle Strap
Exframe 2.0 ankle straps provide a secure and locked-in ride feel. Lightweight, super durable and a team and shop favorite.
Stage 5 Duraflex Baseplate
All-day comfort and response for riding the entire mountain. The bombproof Stage 5 Duraflex baseplate is built to last. Backed by a lifetime warranty.
|MONDO||24 - 25.5||26 - 28||28.5+|
|UK||5 - 6.5||7 - 9||9.5+|
|US MEN||6 - 7.5||8 - 10||10.5+|
|EURO||38 - 40.5||41 - 43||43.5+|
|MONDO||21 - 23.5||24 - 25.5||26 - 28|
|UK||2 - 4.5||5 - 6.5||7 - 9|
|US WOMEN||4 - 6.5||7 - 8.5||9 - 11|
|EURO||34 - 37||38 - 40.5||41 - 43|
|Recommended Use||All Mountain|
|Base||Stage 5 Duraflex|
|Ankle Strap||Exoframe 2.0|
|Toe Strap||TS 1.0 Hexgrip|
* Subject to change without notice.