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Rab Mythic Series Sleeping Bag

by Rab
Sale Sale
Original price $949.95
Original price $799.95 - Original price $999.95
Original price $949.95
Current price $699.00
$599.00 - $749.00
Current price $699.00
Model: 400

Afterpay or Zip ($100min-$1000max)

Rab's Mythic sleeping bag series is their ultra-lightweight down bag with the best warmth to weight ratio. 

The Mythic sleeping bag series has been designed for those of us looking to reduce weight while we move through the mountains in cold environments. The Mythic range carries on with the Rab tradition of creating bags based on years of experience in the mountains and this series carries on pushing the boundaries in innovation and design.

Filled with ethically sourced goose down and achieving exceptional warmth to weight ratio, the Mythic bag still retains all the features needed to stay warm and protected in the mountains. The tapered mummy shape paired with an angled foot box gives the user a generous fit for its overall weight. The baffle construction designed to save weight prevents the downshift, while the chambers are angled downwards in chevrons keeping the down over the centre of the body to ensure core warmth throughout the night.

The internal collar is ergonomically designed, and the collar, hood and internal baffles can be sinched for extra warmth. Featuring a YKK zipper with a glow in the dark puller, while the boned zip guards work as a draught excluder. The super lightweight trims reduce weight and the compression dry sack helps ensure protection and a smaller pack size while you're on the move. 

Like all Rab bags the Mythic series is hand filled in Derbyshire, UK.


  • Pertex Quantum 10 Denier Inner and Outer.
  • Rab Fluorocarbon free Hydrophobic Down developed in conjunction with Nikwax.
  • Trapezoidal baffle chamber design.
  • Proportionally assigned differential cut.
  • Anti snag bonded zip guard.
  • Internal collar and hood drawcord.
  • Angled foot box.
  • Certified European Goose Down.
  • Mummy taper shape.
  • YKK 3 coil main zipper with noctilucent puller (zip length varies on models).
  • Ergonomically designed internal collar.
  • Super lightweight trims and features.
  • Cotton storage sack.
  • Available in left zip only.


Total Weight Down Fill Weight Fill Zip Shell Fabric Liner Fabric  Colour
Mythic 200 475g 212g 900 FP Goose LT¼ Pertex Quantum
Pertex Quantum
Mythic 400 660g 400g
900 FP Goose
Pertex Quantum
Pertex Quantum
Mythic 600 885g 600g
900 FP Goose
Pertex Quantum
Pertex Quantum


Temperature Rating

 *The Rab sleep Limit is calculated from EN13537 and BS TOG results.*

EN Comfort
EN Lower Limit
EN Extreme
RAB Sleep Limit
RAB Sleep Limit
RAB Sleep Limit
Mythic 200 6℃ 1 -13 1
Mythic 400 -1 -6 -24 -7
Mythic 600 -5 -12 -32 -16