Blundstone 164 CSA Greenpatch Chelsea in Crazy Horse Brown checks all the safety boxes so you can focus on the job at hand. Blundstone steel toe CSA safety and dry all-day comfort, even on concrete. Flexible, comfortable and pull-on, kick-off easy to keep mud and debris off car mats, indoor carpets and new floors. Protection from electrical, chemical and mechanical dangers. Unisex Blundstone sizing.