Asics Gel-Kahana 8 "Gray Gold'DESCRIPTION : Outside : Upper made of breathable mesh and synthetic materials ; Interior : Padded lining and footbed provide added comfort and cushioning. High quality internal materials provide good ventilation and prevent unpleasant odors; Sole : GEL Technology consists of special silicone inserts that provide the best shock absorption . The tread on the outsole provides good friction and stability when walking; Seasonality : can be used throughout