designed for enhanced barefoot performance and durability

The Ultra II is barefoot amphibious footwear for young adventurers

the removable warm shearling and felt insole provides extra warmth when needed

and a Proprioception Mat to enhance sensory response

The Primus III is an ultra-lightweight barefoot trainer for preschoolers

Primus Trail Flow Mens Dark Shadow Size:44eu designed for enhanced barefoot performanceThe Primus Trail Flow is a lightweight, high performance barefoot trail runner built for moving naturally across varied terrain. With a breathable recycled mesh upper and a grippy, low profile outsole, it delivers strong ground feel while keeping you agile and connected. Designed for responsive movement, its ideal for trail runs, hikes, and off road exploration.