Excellent insulating properties, exceptional breathability and optimal moisture management make merino wool the best material for the production of thermo-active clothing. The Engelbert Strauss FIBERtwin Merino Thermoactive T-shirt is made entirely of this unique material.
Engelbert Strauss thermoactive shirt with long sleeves, in a fitted cut. Gray product with contrasting stitching and a large brand logo - a characteristic ostrich. Made of 100% merino wool with a weight of approx. 200 g / m2, it has unique thermal insulation properties. Merino wool provides thermal comfort at low temperatures, and at the same time protects against overheating during intense exercise. Provides excellent moisture management, thus preventing the growth of bacteria and the formation of unpleasant odors. The material is breathable and quick-drying, so there is no risk of cooling down after exercise. Against the background of artificial and synthetic knitted fabrics, merino wool is distinguished by functionality and properties, and at the same time it is pleasant to use, therefore products made of merino are of the highest possible quality. The Engelbert Strauss thermoactive T-shirt is perfect as the first layer of clothing, both for work in difficult conditions and during various activities.
Product Features:
- made of 100% merino wool,
- Long Sleeve,
- fitted cut,
- excellent thermoregulatory properties,
- breathable and quick-drying,
- prevents the formation of unpleasant odors,
- pleasant to use,
- manufacturer code: 88063 (formerly 88051).
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Manufacturer: Engelbert Strauss

Engelbert Strauss GmbH & Co. KG
Frankfurter Straße 98 - 108
Biebergemünd 63599
info@strauss.de
Download - General safety instructions for upper clothing
Safety warnings:
- The product is not intended for children – protective and work clothing is designed exclusively for adults, in sizes and construction tailored to the needs of employees.
- Packaging suffocation or choking hazard – foil or plastic packaging should be stored and disposed of out of reach of children.
- No protection against hazards other than those specified in the product documentation – clothing does not provide protection against fire, chemicals, electricity or radiation unless it is designed and certified for this purpose.
- Reflective clothing:
- Reflective elements lose their effectiveness when they become dirty, wet, discolored or mechanically worn.
- Use in conditions of limited visibility requires adequate lighting and a contrasting background.
- Reflective elements must not be covered with other clothing or accessories.
- Clothing to protect against cold:
- Provides protection only within the range specified in the EN 342 or EN 14058 standards – it does not guarantee safety at extremely low temperatures, below the manufacturer's parameters.
- Layer your clothing as recommended to avoid the risk of hypothermia.
- Getting winter clothing wet can significantly reduce its insulating properties.
- Rainwear:
- Maintaining waterproofness depends on the correct fastening of all elements (zippers, Velcro, buttons, protective strips).
- Mechanical damage, prolonged use or washing at high temperatures may reduce the level of water resistance.
- Intense physical activity can cause moisture to accumulate inside clothing, requiring the use of breathable clothing or intermediate layers.
- Thermal underwear:
- Does not provide protection against direct contact with chemical, thermal or mechanical factors.
- The effectiveness of moisture wicking depends on the proper fit to the body.
- Excessive stretching or damage to the material may reduce its performance properties.
- Maintenance and cleaning:
- Failure to follow washing, drying or storage instructions may result in loss of protective properties.
- The use of chemicals not recommended by the manufacturer (e.g. bleach, solvents) may permanently damage fabrics and protective elements.
- Clothing exchange:
- Clothing that is worn, frayed, mechanically damaged or has visibly deteriorated reflective elements should be replaced immediately.
- Regularly checking the condition of clothing is crucial to maintaining the user's safety.
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