Inflatable Mattress - Ultralight XR Thermalcore
Sea to Summit Ultralight XR ThermalCore Inflatable Mat – Regular
The Sea to Summit Ultralight XR ThermalCore Regular is an ultralight inflatable mat designed for hiking, trekking, and bikepacking. Compact and easy to carry, it offers an excellent balance of reduced weight, comfort, and insulation for nights spent bivouacking.
Its Air Sprung Cells™ construction with over 150 independent cells conforms to the body's shape and minimizes pressure points for more stable sleep, even on uneven terrain. ThermalCore™ insulation with a reflective TRM film reflects body heat and improves the mat's insulation, with an R-Value of approximately 3.6, suitable for 3-season adventures.
With a thickness of approximately 6.5 cm, a multifunction XPRESS valve, and an integrated Airstream™ pump sack, inflation and pressure adjustment are quick and simple. Lightweight (approximately 415 g in Regular size) and very compact when stored, it is ideal for thru-hiking, trekking, and lightweight bivouacs.
FAQ
1. What is the ideal weight for my pilgrim's backpack?
The golden rule on the Camino is to keep your pack weight under 10% of your body weight . For example, if you weigh 70 kg, your pack should not exceed 7 kg. At the Pilgrim's Shop , we carefully select ultralight and compact gear (sleeping bags, clothing, toiletries) to help you protect your back and joints, kilometer after kilometer.
2. How to choose your shoes for walking to Santiago?
The choice depends on the section of the route and the season. For rocky paths like the Camino Francés , a mid- or low-cut hiking shoe with good grip is ideal. Expert tip: Always choose a size larger than your usual size, as your feet will swell with exertion. Don't forget to break them in by walking several dozen kilometers before your big departure.
3 - What are the essentials to avoid blisters?
Blisters are the pilgrim's number one enemy. To prevent them, we recommend the "three-layer" system:
- A pair of technical anti-friction socks (in merino wool or double thickness).
- A daily application of anti-chafing cream (such as Akileïne).
- Precise lacing of your shoes.
Find our complete "Anti-Blister Kit" in our accessories section.




