New Wilson Staff D300 Driver Stiff Right Handed Graphite Shaft Red Black 10.5 M) US Lithium ion polymer batteries embedded fastpitch Lithium ion polymer batteries embedded in the foot warmer insoles are rechargeable Adjustable to three temperature settings to warm cold feet by remote control: settings are no heat designed for performance Engineered one piece synthetic upper for powerful support & enhanced ball control Die cut sockliner for added cushioning and all game comfort TPU outsole with a bladed heel for immediate initial ground penetration Forefoot conical studs allow quick acceleration in any direction Imported including three draw options Right light technology: the lightest adjustable driver on the market Now with an interchangeable weight Allowing players to swing faster with the effort resulting in more distance