Keeping the cold head: Coldanna handkerchief with fresh-technology

One of the points of the body through which we lose more heat is the head. Its large network of hair vessels makes a lot of blood that refrigerates when you reach the cranial area.

When temperatures increase it, it is essential to maintain an acceptable temperature in this important area of ​​the body, and thinking about it the technicians of the American company Zanheadear have designed the scarves or "bandanas" for the Coldanna head.

They are made of 100% cotton and have a technology that allows them to keep them wet and fresh for hours, especially on hot days or under extreme physical conditions.

The secret is inside: they are filled with polymer crystals that absorb water and keep it inside at a constant temperature for a certain time. In this way it is possible to transfer the heat of the head (or the neck, because they can also be knotted here) outside an efficient way.

Its use is very simple, you just have to immerse the handkerchief in water for 10 minutes and it can already be used. It is delivered with a bag with "zip" closure to facilitate this need and its transport.