Fjord Nansen Twist Tritan Bottle 1 l - Grey

The model offers a thermal insulation factor with an R-Value of 1.5, assessed according to the ASTM F3340-18 standard. This value defines the level of insulation from the ground—the greater the number, the more efficiently heat loss is minimized.

R-Value classification as applied in the outdoor sector:

• 1.0-2.0 – recommended for summer use (when nighttime temperatures remain above approximately 10 deg. C),
• 2.1-3.5 – intended for spring, summer, and autumn use (in the range of about 0–10 deg. C),
• 3.6-5.0 – designed for colder environments, near 0 deg. C or negative temperatures down to around -5 / -10 deg. C,
• 5.1-7.0 – built for winter applications in sub-zero conditions,
• above 7.0 – engineered for winter situations requiring superior thermal insulation.

Overall thermal comfort will also be influenced by factors such as the entire sleeping system (sleeping bag, layers of clothing), ground characteristics, and the user's personal tolerance to cold.

A safety lanyard is integrated with the cap, preventing loss and serving as a convenient handle for securing the bottle, for example, to a backpack. Additionally, the filler features a detachable strainer that stops debris from clogging the filler.

• Crafted from Tritan
• 1 liter volume
• BPA free construction
• Equipped with a lanyard on the cap
• Integrated strainer in the filler