The Serious+ 10 Inch Waterproof Composite Toe Met Guard Puncture-Resisting Pull-On Boot Provides Ultimate Protection So You Can Tackle The Day With Confidence. The High-Tech Nano Composite Toe And Met Guard Help Protect From Heavy Loads And Impact, While The Goodyear Leather Welt With Puncture-Resisting Insole Board Helps Prevent The Intrusion Of Sharp Objects Underfoot. Waterproof Leathers And A Dri-Lex Lining Provide A Comfortable Environment Inside The Boot, And The Vibram Alpha Plus Outsole Delivers Oil- And Heat-Resisting Durability.