Description 25 years of Merrell’s women’s-specific fit. The Siren 4 is uniquely engineered to cradle the distinct contours of female feet, providing comfort, support, and stability even on the longest hikes. Features GORE-TEX® waterproof membrane, exceptional breathability and waterproof performance • Breathable mesh and TPU upper • 100% recycled laces and webbing • Bellows tongue keeps out debris • Protective and abrasion resistant rubber toe cap • 100% recycled breathable mesh lining • 100% recycled mesh footbed cover • NXT treated to prevent odor • Removable PU footbed • Rock plate for protection • FloatPro™ Foam midsole for lightweight comfort that lasts • Vibram® TC5 outsole provides exceptional traction for outdoor multi-sport activities, formulated exclusively for Merrell • Vibram® traction lugs specifically designed to increase traction and shed debris with each step
