Fully Capable. But Faster.
For jobsites where the work is relentless, the Caliper BOA® brings the speed and secure fit of the BOA® Fit System to one of Danner's long-running work 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 tug on the release lets you clock out in an instant — and thanks to BOA's design, there's never a need to take off your work gloves.
Key Features of the Danner Caliper BOA 6" 19420
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BOA® Fit System: A dial-based closure delivering a micro-adjustable, precision fit with no loose laces to catch or trip on. Glove friendly, and proven durable in mud, cold, or wet environments. Backed by BOA's own lifetime warranty on the dial hardware.
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Aluminum Toe: A lighter alternative to steel that meets ASTM F2413-24 I/C EH standards for impact and compression resistance.
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Full-Grain Leather Upper: Tested through six rounds of quality checks for strength and durability.
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Waterproof Danner® Dry Liner & Waterproof Lacing: A 100% waterproof barrier keeps water out while letting moisture escape, for all-day dry comfort.
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Electrical Hazard (EH) Rated: Non-conductive soles help protect against electrical shock in dry conditions.
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Dual Layer Comfort Footbed: Plush memory foam and polyurethane for instant and long-lasting comfort.
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PU Midsole with Polypropylene Board: Support underneath the entire length of the foot.
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Danner® Caliper Outsole: Oil- and slip-resistant rubber with a low-profile 90° heel, for versatile indoor and outdoor traction.
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Memory Foam Strobel Sock: Additional comfort and cushioning underfoot.
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DPDX Last: A low-profile, versatile fit for everyday work. If you're between sizes, Danner recommends sizing down a half size.
No Laces, No Slowdown
The BOA Fit System replaces traditional laces entirely — a turn of the dial secures the whole boot evenly, and a quick pull releases it, so you're never fumbling with laces while wearing work gloves.
Why Choose the Danner Caliper BOA 6" 19420?
If you want genuine safety-toe protection with a fast, precise fit system, this is it. The BOA Fit System, ASTM-certified aluminum toe, and Danner Dry waterproofing come together in a boot built for jobsites where speed and a secure fit both matter.
Similar Styles to Consider
Prefer traditional laces? See the Caliper 6" Aluminum Toe (19453) or the Caliper 6" (19452).
Shop more:Danner Boots, Alloy Toe Boots, Waterproof Work Boots
Frequently Asked Questions
How does the BOA Fit System work?
A dial on the boot tightens an internal lacing system evenly across the whole foot — turn to tighten, pull to release instantly. It's glove-friendly and eliminates loose laces entirely.
What safety standard does the aluminum toe meet?
It meets ASTM F2413-24 I/C EH — certified for impact and compression resistance, plus electrical hazard protection.
Does the Caliper BOA fit true to size?
It's built on the DPDX last, a low-profile, versatile fit. If you're between sizes, Danner recommends sizing down a half size.
What footbed does the Caliper BOA use?
A Dual Layer Comfort Footbed of plush memory foam and polyurethane, over a PU midsole with a polypropylene board that supports the full length of the foot.
What widths does the Caliper BOA come in?
It comes in Medium and Wide, in men's sizes 7 through 15.
What outsole does the Caliper BOA use?
The Danner Caliper outsole, an oil- and slip-resistant rubber sole with a low-profile 90° heel for versatile indoor and outdoor work.
