Weight: 315 g (per shoe in size UK 5.5)boost™'s energy-returning properties keep every step charged with an endless supply of light, fast energyTextile and durable mesh upper with abrasion-resistant welding for added support and protection; Speed lacing construction for fast lacing and a snug fitWaterproof and breathable GORE-TEX® liningPRO MODERATOR™ medial and lateral support puts extra stability in the midsole; Outdoor-specific EVA frame for stability; Women's-specific fitContinental™ Rubber for extraordinary gripPush your limits in these women's mountain running shoes with boost™ energy return. In a comfortable, women's-specific fit, they are built for a low-to-the-ground feel, with a lightweight textile upper, protective TPU-welded overlays and speed lacing for a perfect fit. The breathable GORE-TEX® membrane keeps feet dry through wet weather. A Continental™ Rubber outsole ensures extraordinary grip, even in wet conditions.