Merrell Siren 4 Mid GTX Hiking Boots NWT (without original box). Size 9 The Siren 4 is uniquely engineered to cradle the distinct contours of female feet, providing comfort, support, and stability even on the longest hikes. Details: GORE-TEX® waterproof membrane. Breathable mesh and TPU upper Metal Hook and 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