The ideal gift! Buy the best pale lager online. Price and reviews available for Keystone Light Lager Beer – Beer – 15x 12oz Cans. Keystone Light beer is an American light lager beer. Light-bodied, crisp and refreshing, this beer has a 4.1% alcohol by volume. A great choice for sessioning with friends, this beer delivers an exceptionally clean taste and undeniably smooth finish. This case of beer cans is the perfect beer for evenings on the front porch and bonfire parties. This American beer is triple-filtered to perfection for a satisfying taste thats never bitter. Try pairing ice-cold Keystone beer with burgers, hot dogs, BBQ and wings next time you need refreshing drinks for an outdoor cookout. Keystone Light was created in 1989 by Coors Brewing Company. For over 25 years, Keystone Light has remained a refreshing light beer that thats always smooth.