Nike Quickstrike deal alert! size? has the black/tan NSW Mayfly for over $30 off retail with some great sizes to choose from. The first Mayfly models from Nike were built for long-distance running and were intended for use for just a designated distance consumption. Fast forward to 2012 and the model has been updated with a little bit more durable sole and a fresh, smooth suede upper with a laser engraved layers-type pattern. There are five available sizes for these trainers, but check the size chart for proper conversion as they are listed as UK. Shipping to the US from size? is very affordable as well, right around $8 USD.