Union Astra Step On® Women's Snowboard Bindings

Step On® convenience combined with precise board control

Union Astra Step On® are women's snowboard bindings that combine the fast Step On® Instant Connection™ system with versatile all-mountain performance. They allow you to start riding without fastening traditional straps while maintaining a secure connection between the boot and binding, responsive handling and confident board control.

The medium 6/10 flex provides a balanced combination of support, comfort and freedom of movement. This makes the Astra Step On® suitable for dynamic riding on groomed slopes, more relaxed runs and exploring varied terrain.

Fast entry without traditional straps

The Step On® Instant Connection™ system allows compatible boots to be secured intuitively in just a few simple movements. First, place the heel into the binding to engage the rear connection point, then press the front of the boot down until you hear the characteristic click.

To release the boot, pull the lever located at the back of the binding and gently rotate your foot. This solution saves time while maintaining direct energy transfer and the precision needed for more demanding riding.

Versatile flex and comfortable cushioning

The S1 Step On® W Duraflex ST baseplate has been designed around the female anatomy, providing stable support and efficient transfer of movement to the board. The Hi-Flex HP EVA cushioning system absorbs vibrations and impacts, helping reduce fatigue during longer days on the slopes.

The adjustable gas pedal allows the baseplate length to be matched to the boot size, while the two-stage highback forward lean adjustment system makes it possible to customise the binding response according to individual preferences.

Who are the Union Astra Step On® bindings for?

Union Astra Step On® are designed for intermediate and advanced snowboarders looking for convenient entry, versatile flex and reliable control during all-mountain riding. They are a suitable choice for riders who do not need an extremely stiff binding but still expect dependable support and quick response.

• For intermediate and advanced snowboarders.
• For all-mountain riding, groomed slopes and varied terrain.
• For riders looking for the convenience of the Step On® system without traditional straps.
• For snowboarders who want a balance of comfort and responsiveness.
• For riders who prefer a medium, versatile flex.

Key features

• CONNECTION SYSTEM: Step On® Instant Connection™ – a fast and intuitive system for entering and releasing compatible boots without traditional straps.
• BASEPLATE: S1 Step On® W Duraflex ST – a women's-specific construction providing stability, durability and precise energy transfer between the boot and board.
• CUSHIONING: Hi-Flex HP EVA – flexible foam that absorbs vibrations and impacts, improving comfort and helping reduce leg fatigue.
• FOOTBED: Non-Stick HP EVA – waterproof, closed-cell foam that provides additional cushioning and helps prevent snow and ice build-up.
• HIGHBACK: S1 Step On® W Duraflex ST – a women's-specific highback that provides a balanced combination of support, responsiveness and riding comfort.
• HIGHBACK ADJUSTMENT: integrated two-stage FLAD system that allows the forward lean angle to be adjusted to suit the preferred riding style.
• HEELCUP: Extruded 3D Aluminum – a lightweight and durable aluminum construction that provides secure heel hold and precise energy transfer.
• GAS PEDAL: an adjustable component that allows the baseplate length to be matched to the size of the boot.
• HARDWARE: Grade 8.8 Steel – durable steel mounting components designed for intensive use.
• DISKS: Step On® 4x2 Disk and Step On® Channel Disk.
• CANTING: none.
• BOARD COMPATIBILITY: 4x2 insert system and Burton The Channel®.
• BOOT COMPATIBILITY: compatible exclusively with women's snowboard boots featuring the Step On® Instant Connection™ system.
• WEIGHT: approximately 1.70 kg per pair.
• RIDER LEVEL: intermediate and advanced.

Frequently asked questions

Are Union Astra Step On® compatible with standard snowboard boots?

No. These bindings require women's snowboard boots compatible with the Step On® system. Standard boots designed for traditional strap bindings will not work with them.

Can the highback forward lean be adjusted?

Yes. The integrated two-stage FLAD system allows the highback forward lean angle to be adjusted and the binding response to be customised according to individual preferences.

Which snowboards are compatible with Union Astra Step On®?

The bindings are compatible with snowboards featuring a standard 4x2 insert pattern and Burton snowboards using The Channel® system.