evo.com | Merrell Shoes > A waterproof membrane and full-grain leather upper keep the Merrell Siren 4 WP Boots dry through creek crossings and slush, while the Vibram outsole and Merrell Air Cushion heel add stability on uneven, wet terrain. A dependable three-season hiking boot for trails that don't stay dry for long. Drop 8mm Medial Zipper for Easy On/Off Bellows Tongue Keeps out debris. Waterproof Coated Leather Upper TPU Waterproof Shell for Additional Protection | Women's Merrell Siren 4 WP Boots 2026 - 6 Green | Leather