Climate+ by MiiR is the lightest 20oz insulated stainless steel wide mouth bottle in the market (9.76oz). Climate+ by MiiR is in a class of its own, boasting 25% less stainless steel, no new plastic, and 110% of its carbon footprint offset. All while maintaining Thermo 3D double-wall vacuum insulation. Care GuideWash before first use. Hand wash recommended. Lid top rack dishwasher safe. Do not freeze, do not microwave, do not bleach, do not overfill. CAUTION:Choking hazard, may contain small parts not suitable for children under 3 years. Product Weight:0.61lb