Silicone Skin Pouch For Nike+ iPod and Nike Plus Nike+ SportBand - Compatible with all Shoes- Orange
Really ingenious way to use the Nike+ sensor without paying extra for the Nike+ shoes. Straps onto the laces on top of shoe. Easy to take out if want to use the shoe for something other than running or walking - like walking on the beach, or playing basketball, etc. Taking the sensor out will hopefully extend battery life, which is the major complaint with the Nike+ sensor. I also got great service from the Marketplace vendor used by Amazon; fast delivery and actually cheaper to go through Amazon than to go