Therm-a-Rest Z Lite Sol R is one of the most popular closed-cell foam sleeping pads among ultralight backpackers and minimalist adventurers. Its folding design makes it easy to pack, while the reflective ThermaCapture™ surface boosts warmth without adding weight.

Key Features:

• ThermaCapture™ coating: reflects radiant heat back to the body
• Dimpled surface: traps warmth and provides slight cushioning
• Closed-cell foam: durable and puncture-resistant
• Folding accordion-style design: compact, fast to deploy and pack
• Ultralight: perfect for thru-hiking, alpine climbs, or as a winter base layer

Specifications:

• Size R (Regular)
• Dimensions: 183 × 51 × 2 cm
• Packed size: 51 × 13 × 14 cm
• Weight: approx. 410 g
• R-value: 2.0 (suitable for 2–3 season use)
• Material: Crosslinked Polyethylene Foam

Note: Often used as a standalone pad or as a protective base layer under inflatable mattresses for added insulation and durability.