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The Flex Trail Shield is designed for the trail runner who wants the perfect blend of flexibility, cushioning and lightweight feel of the Nike Flex 2012 Running Shoe - with added protection from the elements.

Upper:

• Lightweight and trail-ready with DWR-treated sandwich mesh
• Breathable water repellency
• Trademark swoosh in reflective heat-transfer material for visibility

• Dual-density Phylon
• Firmer foam carrier with softer foam core delivers premium cushioning

• Extremely flexible
• Configured with angled edges and gaps for quick and easy mud shedding
• Optimal grip in all directions