Stay hydrated with the Hydro Flask 18 oz Wide Mouth Kids Water Bottle with Straw Cap. The TempShield double-wall vacuum insulation keeps drinks cold for up to 24 hours, while the 18/8 pro-grade stainless steel affords durability. The perforated bottle boot provides protection, and the Color Last powder coat is dishwasher safe for lasting use. Specs Dimensions: 9.1"H x 2.9" diam. Weight: 11 oz.