Free US Shipping + Returns Meet the Bedrock Mountain Clog - featuring a durable leather suede upper in Birch Bark. Built from the lugs up, we’ve stacked a cushy midsole atop our super grippy Vibram® Megagrip outsole for that perfect comfy-rugged combo — while maintaining a zero drop profile for natural movement and the widely adjustable strap system you love on our sandals.