TIMBERLAND PRO. A1RW4214. MENS HELIX HD 8 COMPOSITE TOE WORK BOOTS. BROWN FULL-GRAIN. The ultimate in lightweight comfort. Now available in 8-inch heights these men s waterproof boots combine anti-fatigue technology with durable leathers to create some of our toughest-ever pairs. Premium waterproof leather uppers with waterproof membranes to lock out water. Mesh linings with antimicrobial treatment for odor control. Fiberglass shank for structural support. Timberland PRO rubber outsole is flat for maximum traction and slip- oil- and heat-resistant up to 572 degrees Fahrenheit -- 300 degrees Celsius.