Wool has many advantages for climbers, including the ability to regulate body temperature during the climbing and resting phases.

This is based on two principles: Firstly, wool fibres naturally capture air pockets, enabling them to store body heat, thus providing optimal thermal insulation. The air works as an insulating layer, both in summer and winter, protecting against both heat and cold.

The second is the evaporative cooling principle. Wool can absorb approximately 35% of its own weight in moisture without actually appearing damp. If the air temperature is warm, the moisture dries more quickly, resulting in evaporation and a cooling effect.

We are using 52% very fine Merino wool. At just 17.5 microns (one micron = one thousandth of a millimetre), the wool fibres are so fine that they are well below the limit at which itching occurs on human skin.

In addition to this, we combined these wool fibres with 38% Lyocell fibres that are very soft to the touch.

Studies* show that wool tends to neutralise odours. This would be due to the structure of the wool fibre and its ability to absorb moisture.

Indeed, there would be less sweat on the skin. The moisture would be absorbed directly into the core of the fibre and not on the surface. This would enable less sweat to be left on the skin or on the surface of the textile, thus less bacteria and less odour.

In addition, keratin seems to have a tendency to partially destroy bacteria.

*Studies: McQueen et al, Retention of axillary odour on apparel

fabrics, 2008, Journal of the Textile Institute Vol. 99,

no. 6, 518/ Diagram no.2: McQueen, R.H., Laing, R.M., Brooks,

H.J.L, et Niven, B.E., Odour intensity in apparel fabrics and

the link with bacterial populations, 2007, Textile Research

Journal, 453/ CSIRO Odour and Toxics Absorption, 2006, 1

Our wool comes from South Africa, with guaranteed mulesing-free sourcing.

Although this T-shirt was designed with a blend of synthetic fibres to increase its robustness, we advise you to wash your T-shirt in the washing machine at 30°, normal cycle, if possible in a protective bag. Drying should be done flat and not in a dryer to avoid shrinkage.