Lithium-polymer batteries, 3?7 V / 1.9 Ah / 6.6 Wh
Includes USB adaptable mains wall charger
ORTHOLITE: Engineered from open cell polyurethane, Ortholite soles retain 95% of their cushioning after one year of use, whereas ordinary soles lose 70% of their cushioning over the same time period.
The Ortholite sole is light and breathable. The air circulates, to help evacuate heat and moisture to keep the feet dry. The environmentally-friendly biocide treatment is antimicrobial and creates a healthier environment for the feet. The advantages of Ortholite Open-Cell Technology are:
High level of breathability
Easy to wash
Carbon fibre heating elements
Lining: 100% polyester
EVA: The moulded EVA foam insert is particularly flexible. It helps improve shock absorption and lightness.