Union Astra Step On Womens Snowboard Binding 2027

The Union Women’s Astra Step On Bindings 2027 mark a major step forward as Union’s first women’s-specific Step On binding. Built in collaboration with Burton, the Astra blends the trusted Step On® system with Union’s innovative binding construction, delivering effortless entry, smooth power transfer, and dependable all-mountain performance.

Designed for riders who want convenience without sacrificing response, the Astra Step On provides a secure, responsive feel with quick step-in functionality — simply step in and ride, then release easily when it’s time to get off the board.

Note: Step On boots must match the size of your bindings. Refer to the size guide for compatibility.

Binding Type: All-Mountain

All-mountain bindings are built to perform across a wide variety of terrain, providing a balanced combination of comfort, responsiveness, and versatility for groomers, powder, and everything in between.

Flex: 6/10 (Moderate)

A medium flex delivers a great balance of control and forgiveness, offering responsive handling while remaining comfortable for long days on the mountain.

Board Compatibility

Compatible with 4x2 insert patterns and Burton Channel™ systems, allowing easy mounting on most modern snowboards.

Baseplate: S1 Step On W Duraflex Baseplate

Designed specifically for the Astra, this baseplate pairs Union’s durable Duraflex construction with Burton’s Step On interface, delivering reliable power transfer and long-lasting performance.

Bushing: Hi-Flex HP EVA Bushing

Hi-Flex EVA bushings provide soft, consistent cushioning between the rider and the board, absorbing impacts while maintaining comfort and durability throughout the season.

Disk Cover: Non-Stick HP EVA

The Non-Stick Hot Press EVA disk cover features a waterproof, closed-cell finish that prevents snow and ice buildup, while allowing easy adjustment for a precise boot fit.

Highback: S1 Step On W Duraflex Highback

This women’s-specific highback combines Union’s renowned response and control with the convenience of the Step On system, delivering a smooth and supportive ride.

FLAD: Integrated 2-Stage Forward Lean

The adjustable forward lean system provides two positions — standard and +5° — allowing riders to customise their setup for comfort, control, and riding style.

Heelcup: Extruded 3D Aluminium

A durable extruded aluminium heelcup increases binding stiffness, enhances responsiveness, and ensures a precise fit for improved energy transfer.

Hardware: Grade 8.8 Steel

Union uses high-strength Grade 8.8 steel hardware to ensure durability and long-term reliability in demanding mountain conditions.

Combining Union’s trusted performance with Burton’s Step On convenience, the Union Women’s Astra Step On Bindings 2027 deliver responsive control, effortless entry, and dependable comfort for riders who want to spend less time strapping in and more time riding.