Details women's Karhu Synchron 2.0:
The Synchron fits true to size. 
8MM Drop, Weight 277G, Maximum Cushion 
Anatomical lacing system for micro-adjustments
Full-length Fulcrum  for a stable ride
Soft & cushioned  AeroFoam Nova midsole
IdealKnit  mesh construction for breathability and support
Seamlessly engineered upper
Open-cell foam insole for a plush feel

The women's KARHU Synchron 2.0 is a premium cushion daily trainer for neutral or mid to late-stage overpronators runners. The spring 2023 Synchron 2.0 received a complete update; a softer AeroFoam Nova midsole for the most comfortable run and redesigned upper, resulting in a premium supportive fit. Repositioning the stingray Fulcrum combined with a full contact durable outsole and a lighter midsole produces a soft, flexible, and stable ride with a smooth, supportive transition through the gait cycle. The Synchron 2.0 is ideal for longer runs and long days on foot.