Engineered for performance, the men’s Keen Synchro work boots are Keen’s lightest waterproof option—built to keep you moving with over 60% energy return in every step. Designed for demanding environments, they deliver enhanced heel stability, improved abrasion resistance, and superior traction without weighing you down.

The KEEN.DRY waterproof, breathable membrane keeps moisture out while allowing heat to escape, and the water-resistant leather with engineered mesh upper balances durability with flexibility. Inside, a breathable mesh liner promotes airflow to keep feet cool during long shifts.

A KEEN.ReGEN+ midsole provides lightweight, compression-resistant cushioning for a more responsive feel, while KEEN.LOCKFIT technology offers a secure, U-shaped heel support for added stability. The removable metatomical insole ensures all-day comfort and support.

Built with 100% non-metallic construction, these boots easily pass through metal detectors—ideal for high-security worksites. Reflective webbing enhances visibility, and the heat-resistant rubber outsole (rated up to 572°F/300°C) is oil- and slip-resistant for reliable traction. Electrical hazard (EH) protection adds an extra layer of safety in case of accidental contact with live circuits.

Finished with asymmetrical, non-metallic carbon toes that are 15% lighter than steel, Keen Synchro work boots provide dependable protection with a natural, unobtrusive fit—so you can stay light, fast, and ready for anything.

Features:

KEEN.DRY waterproof, breathable membrane seals out moisture from the inside
100% non-metallic construction for easily passing through metal detectors in highly-secured areas
Cement construction for flexible, lightweight performance.
KEEN.ReGEN+ midsole is lighter and more compression-resistant, providing over 60% energy return for a more responsive feel
Water-resistant leather + engineered mesh upper
Mesh liner provides breathability to help keep feet cool in warm environments
KEEN.LOCKFIT firm U-shaped support provides extra heel stability
Nylon shank for midfoot support
Removable metatomical insole for comfort and support
Reflective webbing for additional safety and visibility
Environmentally preferred premium leather from LWG-certified tannery for cleaner water
PFAS-free, durable water repellent repels water just as well as forever chemicals without harming the planet
Heat-resistant rubber outsole rated up to 572°F/300°C
Plastic Hardware
Oil- and slip-resistant non-marking rubber outsole
Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear helps provide a secondary source of protection in case of accidental outsole contact with live electrical circuits
Left and right asymmetrical, non-metallic carbon toes offer unobtrusive fit and are 15% lighter than steel
Meets ASTM F2412-18 and F2413-18 M I/75 C/75 EH standards
Meets ASTM F2913-19 SATRA non-slip testing standards
Meets ASTM F1677-96 Mark II non-slip testing standards
Meets ASTM SATRA TM31 material abrasion testing standards
Midsole meets ASTM D471-06 903# oil and isooctane chemical resistance standards

Men's Footwear - Men's Safety Footwear - Athletic - High - Above Ankle - Waterproof

Keen Synchro Carbon Toe Waterproof Forest Green Work Boots 1030303