Your favorite trails are calling, or maybe that's Merrell's Siren 3 Vent Hiking Shoe whispering in your ear, urging you to head out for a hike. It would make sense, seeing as these comfortable hiking shoes were designed to tackle a wide variety of terrain. They feature highly durable Vibram outsoles with 4. 5mm lugs that are itching to sink their teeth into dusty switchbacks or off-trail scree, while the breathable mesh uppers are reinforced with TPU overlays for a supportive fit, including a Hyperlock molded TPU heel counter for added security on steep, rocky paths. Meanwhile--inside the shoe--comfort is delivered by way of an EVA insole and dual-density midsole. This contoured footbed provides light support to all three arches of the foot, while the proprietary midsole material centers the heel for proper alignment and comfort on long trails.