Rab Mythic Ultra 180 Sleeping Bag

Out of stock

When it comes to ultralight performance sleeping bags, Rab continues to set the bar. Building on the success of their Mythic series, they developed a way to make sleeping bags even lighter, without compromising on warmth. The Mythic Ultra 180 is the result. Featuring Thermo Ionic Lining Technology (TILT), the heat reflecting liner significantly increases warmth while reducing the amount of down required. By combining TILT with the proven design and top quality 900 fill hydrophobic down that made the original Mythic series so impressive, this top-spec sleeping bag will take ultralight endeavours to new heights.


  • Superlight 7 denier ripstop nylon outer
  • Superlight 7 denier ripstop nylon inner with TILT
  • Thermo Ionic Lining Technology (TILT) reflects heat to boost warmth
  • Chevron shaped chambers efficiently stabilise the down, removing risk of down movement and cold spots
  • Trapezoidal baffle chamber design maximises thermal efficiency
  • Ergonomic internal collar and hood
  • â…› length zip with glow-in-the-dark zip pull
  • Anti-snag bonded zip guard helps prevent zip catching on fabric
  • Proportionally designed differential cut
  • Tapered mummy shape with an angled foot box
  • Lightweight dry bag compression stuff sack
  • Cotton storage sack
  • Hand filled in Derbyshire, UK


  • Insulation: 900 fill Hydrophobic Responsible Down Standard (RDS) goose down
  • Total weight: 400g
  • Max user height: 185cm
  • Shoulder width: 70cm
  • Stuff sack size: 32cm x 16cm
  • Available in left hand zip only

Rab Sleep Limit temp rating: 0°C

Season rating icon: 2 season

Insulation icon: Down