For the love of parks. Hydro Flask's "Parks For Al"l program supports nonprofit organizations focused on building, maintaining, restoring, and providing more equitable access to parks. So far more than 3.1 million dollars have been donated in support of the parks that help us all feel happier, healthier and more fulfilled. HYDRO FLASK: *TempShield® *Double-wall vacuum *insulation keeps beverages *cold up to 24 hours *Leakproof *Leakproof when closed *Dishwasher safe *Bottle and tumbler are *dishwasher safe