Merrell Women's Siren 4 GTX hiking shoes are engineered with a women's specific fit, designed to cradle the contours of female feet for comfort, support, and stability on long hikes. These shoes feature a GORE-TEX waterproof membrane for exceptional breathability and waterproof performance. The upper is constructed from breathable mesh and TPU, with 100% recycled laces, webbing, breathable mesh lining, and footbed cover. A bellows tongue keeps out debris, and a protective, abrasion-resistant rubber toe cap adds durability. The Cleansport NXT™ treatment provides natural odor control. Inside, a removable PU footbed and a rock plate offer protection. The FloatPro™ Foam midsole ensures lightweight, lasting comfort, while the Vibram TC5+ outsole, formulated exclusively for Merrell, delivers exceptional traction for outdoor multi-sport activities with specially designed Vibram traction lugs to increase grip and shed debris. The stack height is 28.5-20.5mm with an 8mm drop and a 5mm lug depth. These shoes are vegan-friendly. The color is Navy and the size is 6.5 UK.