Water bottles have come a long way in the past hundred years. After hauling hydration in animal skins and glass for centuries, men started using steel canteens in the two World Wars –- sturdy but heavy, they were a reliable way to schlep your water around the battlefield. Metal bottles, first steel, then aluminum, were the preferred choice for much of the 20th century. Fast forward to the 1990s and plastic bottles came to be all the rage. The ubiquitous Nalgene liter bottle, usually plastered with logo stickers, was as much a fashion statement on college campuses as it was a means for carrying water. But now, plastic bottles are taboo to anyone with an environmental conscience or a healthy fear of cancer. Well, as with most things, what goes around comes around. Witness the Nau Klean Kanteen ($38).

Partnering with Klean Kanteen to release a water bottle with a conscience, the Nau Klean Kanteen is proof that the simplest solution is usually the best and this one is made without plastic, without paint and without rubber. It’s simply a 27 ounce stainless steel bottle with a screw-on cap and an elegant bamboo plug at the top. Nau’s logo is laser etched and the cap seals with food grade silicone. That’s it. Water tastes clean, you look cool and there are no nasty bits to leach into your body or into the environment. Just like the canteens of a hundred years ago. Wool is back, leather is back, steel is back. Plastic and polyester are out. Maybe product evolution isn’t evolution at all.

Buy Now: $38

Tip: if you add a Klean Kanteen to a Nau online order, they’ll give you free shipping on everything.