Igloo® Seafoam Green 32 Oz Flip 'n' Sip Travel Mug. Large stainless steel mug that's made for life on the go with a leakproof lid, no-look-sip indicator, built-in coaster and a leak-resistant straw. You'll also get super long-lasting hot/cold retention. At 32 ounces, this powerful, reusable vessel is great for that much-needed extra-large juice blend, ice-cold water or hot cup of coffee.