The Trail Pro from Therm-a-Rest is an extremely comfortable yet packable four-season sleeping pad. The sleeping comfort is largely due to the thickness of 7.6 cm - sleeping (almost) like at home. Therm-a-Rest's patented StrataCore construction guarantees an excellent warmth-to-weight ratio: a continuous layer of fine-pored thermal foam is combined with alternating air and foam ribs. Thanks to this construction, the all-season mat can be rolled up into a small pack size despite its impressive warmth. Therm-a-Rest's Trail Pro also features the high-quality and extremely ingenious WingLock valve, which allows the sleeping mat to inflate quickly by itself. The opening of the valve is so large that this process takes place quickly. With an R-value of 4.4, the Trail Pro reliably keeps you warm down to an outside temperature of around -11 °C. It is therefore the ideal mat for all those for whom comfort is important on tours all year round and who value economical - if not ultra-minimal - insulation.