X-GPS Size:9 Introducing the Sia – a

Introducing the Sia – a chic multi-strap slide designed for effortless style and comfort

making it ideal for daily use

skin-friendly – and offers the comfort you have come to expect from BIRKENSTOCK

Engineered with firm heel counters and cushioned insoles

X-GPS Size:9 Introducing the Sia – aExperience unparalleled support and functionality with the Xelero X GPS Running Shoe. Our revolutionary Xelero technology features the innovative "Guidance Propulsion System" that cradles the rear foot and guides it into a neutral position throughout the gait cycle. The carbon fiber "Slingshot" plate ensures torsional stability and proper foot alignment, reducing impact pressure. The dual layer "X Lite" midsole provides superior cushioning and