Thermarest RidgeRest SOLite - Warm Closed-Cell Sleeping Mat

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The gold standard in lightweight, closed-cell mattresses.

This lightweight alternative to the RidgeRest Solar mattress is coated with a layer of reflective ThermaCapture technology that redirects radiant heat back to your body to amplify warmth. Working in conjunction with the classic RidgeRest peaks and valleys, the SOLite mattress delivers exceptional insulation in an ultralight and virtually indestructible alternative for backcountry travelers. For maximum warmth, use reflective side-up.

  • Advanced Warmth: Patent-pending ThermaCapture surface boosts warmth by reflecting radiant heat back to your body.
  • Light & Durable: Virtually indestructible and light enough to carry anywhere.
  • Unique Design: Soft peaks and heat-trapping valleys provide exceptional comfort.
Available in three sizes: Small, Regular, and Large. Small: 51 x 122 x 1.5 cm, 260g Regular:51 x 183 x 1.5 cm, 400g Large: 63 x 196 x 1.5 cm, 540g