Thermarest Women's Trail Pro Regular New and upgraded for 2011 the Thermarest Trail Pro is the warmest and most comfortable female specific backpacking mattress ever made! Featuring a high performance diagonal cut foam which retains heat, boosting the overall warmth of the mattress. The Trail Pro also features an all new pressure mapping technology which ensures an ideal pattern of support and cushioning, right where you need it! The Trail Pro also features improved warmth in the hips, feet and torso (where you need it most!) to keep even the coldest sleepers warm. All these features combined to make the Trail Pro light enough for the trail and decadent enough for car camping while remaining versatile to do everything else in between. Stuff sack included! High-Loft: 2 in. (5 cm) of self-inflating loft provide deluxe warmth and comfort. Patent-Pending Warmth: Our unique, die-cut foams form diagonal air columns to slow heat loss with no increase in weight. Pressure-Mapped Comfort: Detailed surface pressure analyses enabled us to adapt mattress density to both high and low pressure areas to provide the most comfort. Lasting Quality: Non-slip, ripstop polyester top and reinforced bottom provide durable, reliable comfort. R-Value - 5.1 Top Fabric Type - Polyester Bottom Fabric Type - Polyester Foam Type - Diagonal punched / Pressure mapped Fill Material - Urethane Foam Weight 910g Width 51cm Length 168cm Thickness 5cm Packaged Dimensions 28x15cm