Move freely through your day to day in the street-ready Vivobarefoot Primus Knit Leather high-performance shoe. Premium knitted sock upper with leather paneling for all-day comfortable foot movement. Padded tongue and collar with pull tabs for easy on and off. Traditional lace-up closure. Removable performance insole from 10 percent BLOOM - an algae-based alternative to synthetic and petrochemical EVA. Non-marking rubber outsole. PRO5 ultra-thin, puncture-resistant sole. Imported. Measurements: Weight: 10.5 oz Product measurements were taken using size 46 (US Mens 12), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.