For jobsites where the work is relentless, the Caliper BOA(R) brings the speed and secure fit of the BOA(R) Fit System to one of our most reliable boots. With just a turn of the dial, the integrated system quickly and evenly secures your foot for a precise, supportive fit that's as custom as it gets. When your shift is over, a quick tug on the release lets you clock out in an instant. Thanks to BOA(R)'s hassle-free design, there's never a need to take off your work gloves. With full-grain leather, Danner Dry waterproofing and waterproof lacing, exceptional cushioning and a rugged slip-resistant outsole to support you in the most demanding work conditions, the Caliper BOA(R) is one tough boot built for the toughest jobs. DESIGN: BOA(R) Fit System for micro-adjustable precision fit Durable full-grain leather upper Danner(R) Dry waterproof protection Waterproof lacing system IN-SHOE COMFORT: Danner(R) Dual Layer Comfort footbed with memory foam and PU Memory foam strobel sock cushioning PU midsole for shock absorption and rebound Fiberglass shank for support DURABILITY & TRACTION: Danner(R) Caliper oil-and-slip-resistant rubber outsole Low-profile 90deg heel for versatile traction Alloy safety toe meets ASTM F2413-24 I/C EH SRO