Description of Montrail Streak Trail Running Shoes Designed for use on a variety of surfaces from rock and mud to grass and dirt. This lightweight and responsive shoe is designed for the trail runner with a need for speed. Features: Multi-directional outsole design offers exceptional traction in every direction. Gryptonite™ “sticky rubber” outsole offers great traction on wet and dry surfaces, combined with outstanding durability. Trail Shield™ protects the foot from trail debris. Vapor-Response™ midsole material is both lightweight and responsive. Upper materials are lightweight and breathable. Weight 11.7 oz; 0.