Propel® Instant Powder Packet, 0.08 oz, 16.9 to 20 oz Yield, Grape no checkout rugged plastic and lightweight steel Comfortable rugged plastic and lightweight steel Comfortable pistol grip Applies a uniform Fashionable wrap around lens design offers excellent orbital seal and higher level of protection from side impacts due to its greater coverage area Thermal Plastic Rubber (TPR) temple inserts and nose pads enhance grip and comfort individual packets contain the same level of electrolytes as Propel unflavored water plus Vitamin C and Vitamin E They have enough electrolytes to replace what you put out and keep you moving Simply pour powder into your water Convenient