Cirra High Impact vs. Alta Medium Impact
![](http://lumesix.com/cdn/shop/files/cirra-high-impact-sports-bra.jpg?v=1717979531&width=300)
![](http://lumesix.com/cdn/shop/files/alta-medium-impact-sports-bra.jpg?v=1717979556&width=300)
Fit
The Cirra High Impact offers wrap-around compression with a higher cut at the front and sides, while the Alta Medium Impact features lower cut sides for increased flexibility.
Straps & Racerback
The Cirra High Impact's wider straps and racerback distribute load over the shoulders during high-impact activities, reducing strain and aching.
![](http://lumesix.com/cdn/shop/files/cirra-high-impact-sports-bra-back.jpg?v=1717986361&width=300)
![](http://lumesix.com/cdn/shop/files/alta-medium-impact-sports-bra-back.jpg?v=1717986376&width=300)
Fabric
Both sports bras use DreamSupport fabric for chest compression, with the Alta Medium Impact incorporating FeatherAir lightweight fabric on the back for maximum breathability.