Our stainless steel Reflect 18oz (532ML) water bottle is beautiful in its simplicity and deliberate in its design. Crafted using sustainable harvested bamboo, stainless steel, and food-grade silicone. Just three materials united into the ultimate expression of Klean. The full stainless steel bamboo cap is crafted from one piece of stainless steel and topped with sustainably harvested bamboo. It creates a full stainless steel interior so your water and other favorite beverages stay fresh and delicious. We laser-etch our logo and the bottom is embossed to keep the bottle paint free. FEATURES No Paint, No Plastic Food Grade 18/8 Stainless Steel, Food Grade Silicone, Sustainably Harvested Bamboo Construction Large 1.75 inch (44 millimeter) opening for easy filling and pouring Electropolished interior doesn't retain or impart flavors Compatible with all Klean Kanteen Classic caps Hand Washing Recommended for Bamboo Cap, Bottle is Dishwasher Safe Backed by the Klean Kanteen Strong as Steel Guarantee SPECS Capacity 18 fluid ounces (532 ml) Weight (w/bamboo cap) 7.6 ounces (215.4 g) Size (w/bamboo cap) 7.9" H x 2.9" W (199.5 mm H x 72.8 mm W) Opening Diameter 1.75" (44 mm)