Therm-a-Rest - ProLite Apex Heat Wave, self-inflating mattress


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Therm-a-Rest - ProLite Apex Heat Wave

The ProLite Apex Heat Wave self-inflating mattress is the evolution for the super tested Apex. The self-inflating foam is 5 cm high and has a StrataCore construction with the best heat / weight ratio of all self-inflating foam mats. With an R value of 3.8, the Apex ProLite allows adventurers to brave the cold in three seasons.


• StrataCore ™ construction: offering the best heat-weight ratio of any self-inflating mattress, StrataCore uses a continuous layer of thermal foam nestled between alternating sides of air and foam.

• Light comfort all year round: perfect for everything from winter adventures to summer backpackers.

• Comfortable self-inflating foam: the expandable foam core inflates automatically; complete with air for personalized firmness on (5 cm) of the StrataCore loft.

• Easily fits your backpack: packs in small quantities to easily find a place in your backpack during fast and light adventures.

RegularRegular WideLarge
Weight (Metric)0.62 kg0.79 kg0.85 kg
Width (Metric)51 cm64 cm64 cm
Length (Metric)183 cm183 cm196 cm
Thickness (Metric)5 cm5 cm5 cm
Packed dimension (Metric)28cm x 12cm33 cm x 18 cm33cm x 17cm
Top fabric type50D polyester50D polyester50D polyester
Bottom fabric type50d Polyester50D polyester50D polyester
Foam typeUrethane FoamUrethane FoamUrethane Foam
Country of OriginUSA * Built of the Finest US and Global MaterialsUSA * Built of the Finest US and Global MaterialsUSA * Built of the Finest US and Global Materials
  • Campi for Use: Mountain climbing
  • Seasons: 3 Seasons
  • Thermicity - R.Value: 3.8
  • Construction technology: Self-inflating: Air plus self-inflating foam


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