Keen - Men's CSA San Jose 90 degree Chelsea-M

The Keen Men's CSA San Jose 90° Chelsea combines premium protection with all-day comfort for demanding work environments. Built with a heat-resistant rubber outsole rated to 572°F/300°C and non-metallic carbon toes that are 15% lighter than steel, this boot delivers uncompromising safety without bulk. The KEEN Luftcell midsole infuses 100,000 microscopic air bubbles per cubic centimeter for cushioning that lasts through long shifts. A flexible woven-textile puncture-resistant plate and nylon shank provide underfoot and midfoot support, while the distinctive 90° heel ensures secure footing on ladders and uneven surfaces. Crafted from LWG-certified full-grain leather with PFAS-free water repellent, the upper resists marking and scratching. Elastic side panels enable quick on-and-off, and the removable metatomical insole adapts to individual comfort needs. A mesh liner keeps feet cool in warm conditions. Meets ASTM F3445-21, F2413-18 M I/75 C/75 EH, and CSA Z195-14 Grade 1 standards. Oil- and slip-resistant outsole passes ASTM F2913-19 and F1677-96 Mark II non-slip testing. Electrical hazard (EH) rated for secondary protection against live circuits. Gently brush with a soft, damp sponge to maintain. A tactical boot engineered for safety professionals who demand both performance and durability.