I know everyone advises against carhartt boots, but figured I would give them a shot anyway. Had them about two weeks, 12 hours a day on concrete, so far so good. :
Carhartt CMF8058 RUGGED FLEX 8" Soft Toe 400g Insulated Work Boots - Family Footwear Center
Amazon.com: Carhartt Men's 8" Energy Waterproof Composite Toe CME8355 Industrial Boot : Clothing, Shoes & Jewelry
Carhartt Men's Brown 8" Internal Met Guard Work Boots - Composite Toe | Boot Barn
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Carhartt Womens Steel Toe Waterproof Wellington Work Boots Size 6 CWP1250 READ 847816027131 | eBay
Carhartt Force Work Boots Review - Pro Tool Reviews
Carhartt Men's 6" Waterproof Steel Toe Work Boots - CMW6273-8 | Blain's Farm & Fleet