The Women's Tree Wool Firstlayer T-Shirt by Mammut is a functional top specifically designed for mountain sports adventures. It combines the benefits of merino wool with Tencel, a natural fiber known for its softness and breathability. This T-shirt not only offers high wearing comfort but also ensures optimal temperature regulation and is odor-resistant, making it ideal for longer outdoor activities. The regular fit design guarantees freedom of movement and a comfortable silhouette. Weighing only 0.096 kg, it is lightweight and can be easily packed in any backpack. This shirt is an excellent choice for those who value functionality and sustainability.
| Clothing size | XS | 
| Sleeve length | Short-sleeved | 
| Material composition | 50% wool, 50% lyocell | 
| Target group | Women | 
| Item number | 55628436 | 
| Manufacturer | Mammut | 
| Category | Functional undershirts | 
| Manufacturer no. | 1017-06670-5784-112 | 
| Release date | 5.3.2025 | 
| Colour | Blue | 
| Exact colour description | Marine Melange | 
| Upper | Wool | 
| Material composition | 50% wool, 50% lyocell | 
| Target group | Women | 
| Age group | Adults | 
| Clothing size | XS | 
| Sleeve length | Short-sleeved | 
| Sport | General information | 
| Fabric properties | Breathable, Odour-inhibiting, Quick drying, Temperature regulating | 
| Fit | Regular fit | 
| Pattern | Mottled | 
| Country of origin | Vietnam | 
| Manufacturer commitment | Fair wear, RE100, SBTi | 
| Manufacturer compensation | According to RE100, the manufacturer Mammut fully compensates for its energy consumption, leading to a reduction in emissions. | 
| CO₂-Emission | |
| Climate contribution | 
| Multipack | Single pack | 
| Weight | 96 g | 
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