Mammut Alvra T Shirt Ladies. Mammut Alvra T Shirt LadiesReach your full potential in the Alvra Ladies T Shirt from Mammut. Crafted from a soft and stretchable wool blend, this t-shirt features a crew neck with short sleeves, odour control, ribbed trim and moisture wicking with long lasting sun protection to avoid colour fading over time.> T Shirt> Crew neck> Short sleeve> Regular fit> Odour control> Highly stretchable fabric> Ribbed trim> Mammut exterior tag> 48% Polyester, 48% Wool, 4% Polyurethane> Machine washable