Vivobarefoot Women's Motus Flex Natural Birkenstock Shoes Thermally efficient base layer with

Thermally efficient base layer with excellent moisture management properties

Don't burn your candle for more than 4 hours at a time

Polartec® Power Stretch® fleece with Hardface® Technology is warm

Tumble Dry Low with Tennis Balls

Upper: Overlasted Matryx® forefoot with Kevlar® reinforcements for added stability

Vivobarefoot Women's Motus Flex Natural Birkenstock Shoes Thermally efficient base layer withDetails The Motus Flex Natural the same freedom and flexibility you love about the Motus Flex, now with more natural materials. The Motus Flex Natural keeps the ultra flexible, stripped back design for primal movement, calisthenics and bodyweight training, incorporating natural yarns and an outsole made using 50% natural rubber. Closer to nature, without compromising performance. Motus Flex outsole Two part flex for maximum mobility and heightened