Nalgene Silo Bottle

Yes, the Silo is significantly wider than a standard water bottle at 3.5 inches in diameter. It will not fit in most vehicle cup holders, so it is best suited for carrying in a backpack or keeping at your desk.

Absolutely. The 2.48-inch wide-mouth opening is compatible with most popular backcountry water filtration systems, allowing you to filter water directly into the bottle.

It can be tricky to drink from while walking or hiking because of the large opening. Many users prefer to pair it with a splash guard insert or simply pour the water into a smaller cup or bottle for easier sipping.

Yes, the bottle is rated for temperatures as low as -40ºC. You can safely freeze water in it, though you should leave some room at the top to account for the water expanding as it turns to ice.

Tritan plastic is highly resistant to retaining odors and flavors. Because the bottle is dishwasher safe, it is easy to keep it clean and neutral-smelling even after using it for sports drinks or electrolyte mixes.