12 Best Minimalist Barefoot Sandals for Running & Hiking。The Oso Flaco Winged Edition is for those who want the most aggressive tread pattern for crazy grip, but also want super flexibility and full ground feel. Its incredibly flexible and lightweight design offer freedom and comfortable mobility to all outdoor enthusiasts! Durable Vibram Megagrip and LUNA’s own MGT (Monkey Grip Technology) merge to create the ultimate sandal base, ideal for everyday wear and extreme adventures alike. At 7mm thick (plus 4.5 lug height) and 7.2 oz, you can take your Oso Flacos on every excursion - climbing, running, hiking, walking, biking, camping, working and lounging. Customize your fit! The Oso Flaco Winged Edition features one continuous strap made from climbing grade webbing and easy slide adjustment buckles to give every foot a perfect fit All LUNA Sandals come with the Moonrock Guarantee to assure you with a lifetime of adventuring. Made in Vietnam. • New . Never Worn • Mens Size 12 • TS9LS • Black