Seamless Speed Meets All-Mountain Performance
The Union Astra Step On® combines the lightning-fast convenience of Burton Step On® technology with Union’s legendary frame design. Built for women who want instant boot-to-binding connection without sacrificing edge-to-edge power, this binding lets you click in and drop straight into your line. Featuring high-flex EVA dampening and a women's-specific Duraflex ST construction, the Astra provides total control and all-day comfort across the entire mountain.
- Best For: All-mountain performance, speed-focused riders, and quick resort laps.
- Skill Level: Intermediate to Advanced.
- Why We Love It:
- S1 Step On® Duraflex ST Chassis: Delivers precise energy transfer and bombproof durability with Step On® Instant Connection™ ease.
- Hi-Flex HP EVA Bushing: A waterproof, vibration-dampening layer that chatter-proofs your ride and protects your joints.
- Integrated 2-Stage FLAD: Easily adjust your forward lean on the fly to match changing snow conditions and aggressive terrain.
