Endurance work boots are built using an anti-fatigue technology for those who spend prolonged periods on foot during the workday. Endurance incorporates comfort elements of the Timberland PRO® PowerFit™ system, including toe shape, foot bed design and moisture-managing materials, while adding a conical mid-sole construction designed to increase the mid-sole’s ability to support, collapse and return when pressure is applied.Timberland PRO, www.timberlandpro.com, (888) 802-9947.