The Merrell Terran 4 Backstrap Sandal features a full grain leather and 70% recycled textile upper with 100% recycled webbing. It includes a 60% recycled microfiber lining and wrapped insole for comfort. The FloatMax Foam integrated insole provides a soft and smooth underfoot experience, while the Super Rebound Compound midsole offers durable shock absorption to reduce torque and ensure a smooth transition into the midfoot. The outsole is made from 30% recycled TPR.