NWOT- (new without tags) Color- Black Never Used Classic Series 18/8 stainless steel, BPA-free Leakproof + packable Never-lose cap with wide mouth opening The retro look, portable size, and slim silhouette means that it can slip seamlessly into any situation. There’s a wide mouth opening for easy refills (no funnel needed). And the stainless steel construction with leakproof cap makes it extra durable.