SUBLIMATION WATER BOTTLE BLANKS: FECBK's sublimation water bottle features a polymer coating. It's straight, not tapered, allowing for easy full-wrap sublimation printing with a tumbler press or oven. The printed colors are bright and clear. PORTABLE & LEAK-PROOF DESIGN: Equipped with a leakproof screw lid and handle lid, our sublimation sports water bottle enables one-handed, tilt-free drinking or straw use. The handle lid is convenient for hanging on a bag or carrying, and it fits in car and bike cup holders. The splash-proof lid seal prevents spills effectively. DOUBLE-WALL INSULATED WATER BOTTLES: Using double-wall vacuum technology, our stainless steel water bottle keeps drinks hot or cold for extended periods - 12 hours for hot coffee and 24 hours for cold beer. The sweat-proof design eliminates annoying drips. DURABLE & EASY TO CLEAN: Made of 304 food-grade stainless steel, the 20 oz sublimation water bottle is durable, rust-resistant, and has no metal aftertaste.