Klymit Summit Sleeping Pads XL - Green

The Klymaloft Summit™ Sleeping Pads feature advanced foam and air technology to deliver elevated comfort and support. A soft foam topper contours to the body, relieving pressure points for a restful night, while the underlying I-beam air chambers provide loft and stability. This hybrid design offers the ideal balance of comfort, compact packability, and lightweight performance. Built for the Summit Series, the Klymaloft Summit™ combines advanced materials and refined design to deliver elevated comfort, dependable support, and lightweight performance for longer adventures.

FEATURES

• Easy Inflation & Adjustment: The Klymit Flip Valve makes inflating and deflating the pad quick and easy, while allowing fine-tuned pressure adjustments for personalized comfort

• Plush Comfort Layer: A luxurious foam topper conforms to your body to relieve pressure points and deliver a mattress-like sleeping experience

• Quiet, Soft Fabric: Stretch polyester feels smooth against the skin and remains quiet as you move, eliminating the crinkling common with traditional pads

• Ergonomic Support: Variable baffle sizes provide targeted support across the pad, improving overall comfort and sleep quality

• Stable Loft & Structure: I-beam air chambers maintain consistent loft throughout the night and evenly distribute weight for reliable support

• Outdoor-Ready Design: Built for backpacking, car camping, and a wide range of outdoor adventures, balancing comfort, packability, and performance

• Summit Series Performance: Uses premium materials and thoughtful construction to provide enhanced comfort, stability, and reliable performance across a wide range of outdoor trips

Specifications:

• Inflated Dimensions: 78 x 29 x 5 in / 198 x 74 x 13 cm
• Pad Weight: 3.2 lb/1.5 kg
• Fabric: 75D Polyester
• ASTM R-Value: 2.4
• Insulation: No
• Pack Size: 15 x 7.5 in/38 x 19 cm
• Storage: Stuff Sack
  
• Flip Valve Inflation
• Plush Foam Topper
• I-Beam Air Chambers
• Quiet Stretch Fabric

FAQ's

• What is an R-Value, and why does it matter for sleeping pads?
  The R-Value measures a sleeping pad's insulation ability, specifically how well it resists heat loss to the ground. A higher R-Value means better warmth and comfort, making it essential for cold-weather camping.
  
  
• What does the ASTM standard mean for sleeping pad R-Values?
  ASTM F3340-18 is the industry-standard test used to measure a pad’s R-Value. It ensures consistent, reliable results across brands, helping you compare pads and choose the right one for your needs. While not all Klymit sleeping pads have been tested to this standard yet, we are actively working through the process to provide ASTM-rated R-Values across our lineup.
  
  
• How does the ASTM standard apply to Klymit pads?
  While ASTM testing provides a standardized way to compare sleeping pad insulation, it does not always account for the unique design of Klymit pads. Many Klymit sleeping pads feature deep V-chamber welds, which are specifically engineered to trap and insulate air pockets beneath your sleeping bag. This design enhances warmth by reducing convective heat loss and working in tandem with your sleep system, often outperforming its ASTM-rated R-Value in real-world conditions. As a result, traditional R-Value testing may not fully reflect the insulation benefits experienced when using Klymit pads in the field.
  
  
• Understanding Klymit Historical R-Values
  Klymit has always prioritized real-world performance when designing sleeping pads, ensuring that all our pads provide four-season usability. Historically, we have used our own rigorous in-house testing methods to determine R-Values, reflecting how our unique V-chamber and Body Mapping™ designs work in tandem with a sleeping bag to maximize warmth.
  With the adoption of the ASTM F3340-18 standard, we now display two R-Values on certain pads—our original Klymit R-Value and the ASTM-rated R-Value—where applicable. This helps provide additional transparency while recognizing that ASTM testing does not always fully capture the insulation benefits of our pad designs. Some pads may only display a single ASTM R-Value as we work through the testing process, but rest assured, every Klymit pad is engineered for year-round performance in all conditions. 
  By considering both values, you can make an informed decision about the best pad for your adventures, knowing that Klymit sleeping pads are built to keep you comfortable in any season.
  
  
• What R-Value do I need for different camping conditions?
  R-Value 1–2: Ideal for summer camping.
  R-Value 2–4: Great for spring and fall temperatures.
  R-Value 4.5+: Necessary for winter camping and cold weather.