Mammut Men's Beanies

Frequently Asked Questions

• Which Mammut men's beanie is best for wearing under a helmet?

  The Aenergy Beanie is designed to fit comfortably under climbing and ski helmets with a close-fitting stretch fabric (85% ECONYL® regenerated polyamide, 15% spandex) and a very low bulk weight, providing moisture management for active use. For colder conditions where more insulation is needed, consider a fleece-lined option like the Fleece or Tweak.
• Which Mammut beanie is best for ultralight or fast-and-light alpine activities?

  The Aenergy Beanie is the lightest option (about 22 g) and uses regenerated nylon and spandex for a low-profile fit that packs extremely small, making it ideal for ski touring, trail running, and fast alpine missions. If you want slightly more warmth with modest added weight, the Tweak Beanie (~40 g) with its fleece lining is a practical compromise.
• How do I care for Mammut wool and synthetic beanies to keep them performing?

  Wash wool and blends gently—hand wash or machine wash cold on a gentle cycle with a mild detergent and avoid bleach; reshape and lay flat to dry to maintain fit and protect fleece linings, and only use a dryer if the garment’s care label explicitly permits tumble drying. Regular airing after high-output days will also help reduce odors in wool and synthetic fabrics.