The ThermoNet material used in this scarf is made of PrimaLoft fiber, known for its great warmth to weight ratio. A warm product doesn't always have to be bulky! Being a genuine Buff, this scarf is very versatile: us it as a neck guard, turn it to a beanie or headband, or a unique scarf with long hair. In addition to other outdoor activities, a Buff is great when sleeping in a sleeping bag. A Thermonet Buff has twice the insulation of the regular Buff, but is not as heavyweight as Polar or Merino Buffs. It is warm, but also highly breathable and light, making it perfect for higher intensity activities in cool and cold conditions. - Warm, breathable material offers great moisture wicking performance - 58% of the material is made of recycled fiber - Stretcyh and seamless - Machine wash at 40ºC - Made in Spain The factory has an ISO14001 environmental certificate, as well as an SGE-21 certificate for social and ethical responsibility. The electricity used in production is made with ren