The Karhu Flow4 Trainer Fulcrum is a neutral, daily trainer that maintains the Karhu tradition with keeping the design simple and slimmed down ...
Editor rating8/10User's rating0/10
Editor rating7/10User's rating0/10
The Karhu Fluid 3 Fulcrum is a lightweight trainer that feels more like a racing shoe. I’d recommend it for lightweight runners who want light cushioning and are ... looking for a fast footstrike