The Lethal Tigreor 6 embodies everything about ASICS? Performance and Speed category! It?s lightweight, fast and adaptive – and strives to reduce the potential for injury for the wearer.A new upper design yields better comfort, fit and performance. High quality synthetic Teijin or kangaroo leather upper materials are extremely lightweight and very comfortable. An integrated lateral support sleeve connected to a gusset tongue delivers outstanding fit whilst enhancing stability and support. A new heel counter construction further increases comfort levels and reduces friction on the foot. A Solyte wedge provides a 10mm heel gradient (HG10mm). By raising the heels 10mm above the toes the wearer is not only placed into a more efficient position for a quick take off but experiences less strain on the muscles on the lower limb.The inclusion of a dual density Solyte Co-polymer outsole provides rearfoot and midfoot rigidity, important for proprioceptive feedback, whilst producing flexibility in the forefoot for explosive propulsion.