Flip, Bite and Sip. No tipping required, though possible, just remove the straw. Dishwasher Safe. Durable and spill-proof. Easy to carry integrated loop handle. 100 percent free of BPA and BPS. Wide-mouth opening is easy to fill with ice. CamelBak Got Your Bak Guarantee- If we built it, we'll Bak it with our lifetime guarantee. Sterling College Warrior logo imprint.