Now, get the Birkenstock comfort you crave, even in your work boots and hiking boots.

• A full-length semi-rigid polycarbonate insole is contoured to support your arch and cradle your heels for lasting comfort throughout your active day.
• A moisture-wicking mesh liner provides breathability.
• A special forefoot area is flexible and improves shock absorption during high-impact activities.
• Thin enough to wear with any casual or athletic footwear and ideally suited for boots. /li>
• Recommended for anyone with low to average arches.