Vivobarefoot - RA IV - Obsidian - Men's TRAIL The light weight super-squeezable UltraFlask™

The light weight super-squeezable UltraFlask™ stands alone

so you get great protection while still getting the ground feedback that your feet love

that’s a technical term for making little tiny holes in the fabric for maximum breathability

Trail enthusiasts & elite Ultra runners

and pursuing your dreams

Vivobarefoot - RA IV - Obsidian - Men's TRAIL The light weight super-squeezable UltraFlask™OXFORD SOUL, BAREFOOT SOLE Challenge what's normal, follow what's natural. The Ra IV is a classic men's Oxford, reimagined with barefoot soul for strong, free feet. Smart on top, wild below. The Ra IV is for rulebreakers and changemakers who think with their feet. Made with Wild Hide leather, organic cotton laces, and a cork insole, with a 4mm Gobi outsole for naturally strong, flexible feet. Work, play, and live with full ground connection. Details: