SAFETY CERTIFICATION-Our metal water bottle tested for safety by a 3rd party, no BPA, phthalates. Every sip is fresh and odor free. EXTRA GIFT-The bottom of the water bottle is easily damaged due to accidental drops and bumps. We provide silicone boots dents caused by accidentally falling water bottles. In addition, the soft silicone sleeve prevents the bottom of the bottle from creating a harsh clinking sound in quiet environments when you place the bottle. INSULATION UPGRADE-koodee adopts advanced triple-wall vacuum insulation technology, which has a longer-lasting insulation effect, which is 9% higher than the two-layer vacuum technology of the previous generation of koodee. Keep cold for 27 hours and keep warm for 13 hours. Wide Handle Lid-The 3-finger wide handle balances the gravity of the water bottle during walking, and your fingers won't feel pain. The handle can be rotated freely with no pressure on your wrist. Easier to carry and keep hydrated at all times Colorfu