The Merrell Women's Siren Sport 3 GORE-TEX® shoes are engineered to provide cushioning comfort on long walks whilst protecting you from wet conditions with a GORE-TEX® waterproof and breathable membrane. They also keep your shoes and feet free from odour thanks to Merrell's M Select FRESH technology, containing antimicrobial agents that help to reduce odours that build up over time. GORE-TEX® waterproof and breathable membrane Suede leather and mesh upper Traditional lace closure Bellows tongue - keeps debris out Breathable mesh lining Kinetic Fit BASE removable contoured insole Shock-absorbing Merrell Air Cushion in the heel Womens-specific Q FORM® 2 midsole - provides light pronation relief Vibram® TC5+ outsole with 3.5mm lug depth Weight: 680g