Ionosphere 5 - Zest
Ā£150.00 Ā£90.00
  • Free delivery on all UK orders over Ā£80

  • No quibble returns policy

  • Join our Community Membership for 10% off full priced items


This ultralight and packable sleep mat is designed to reduce heat loss through radiation and convection, giving it an unbeatable warmth-to-weight ratio perfect for lightweight adventures in challenging environments.

For mountain expeditions where every gram matters, the Ionosphere 5 is ultralight and packable, yet loaded with the necessary tech to keep you warm in tough conditions. The TILT reflective film within the insulation reduces radiant heat loss, while the Stratusā„¢ R insulation traps air to lessen heat loss through convection, ensuring you can recharge for tomorrow even when the temperature plunges.

  • Stratusā„¢ R insulation traps air and reduces heat loss from convective currents.
  • TILT reflective film within the insulation helps reduce radiant heat loss.
  • R-Value: 4.8.
  • Thickness: 8cm.
  • Lightweight construction uses air and insulation for superb warmth-to-weight ratio and minimal pack-size.
  • Oversized outer chambers help keep you centralised on the mat.
  • Graduated grip print finish on upper fabric reduces sleeping bag slip..
  • Tapered mummy shape to save weight.
  • Low profile two-way valve for easy inflation and deflation.
  • Pump sack included for rapid and hygienic inflation.
  • Roll-away stuff sack with repair kit included.
  • Dimensions: Regular 183x51cm. Large 196x64cm.
  • Packed Size: Regular 23x11cm. Large 28x12cm.

Fabric Main:20D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR.

Insulation: Stratusā„¢ R 100% recycled polyester insulation 160gsm with TILT.

Insulation Type: Stratusā„¢ R 100% recycled polyester insulation 160gsm with TILT.