Light and fast the Saucony Kilkenny XC7 Spike delivers the breathable fit and feel you need to focus on your race and aggressive speed and traction to defeat the competition. FLEXFILM overlays lightly lock your foot in place eliminating wiggle room for injury while a stiff four-spike Pebax plate grips the track with every step delivering explosive takeoffs and tape-breaking speeds. Breathable mesh upper with FLEXFILM overlays for lightweight support and lockdown. SSL EVA midsole for responsive cushioning with every step. Four-spike Pebax plate for aggressive traction and snappy energy return. Includes 3/8 pyramid spikes and a wrench. Wt. 5.2 oz. Shipping to Canada is restricted for this product.