Sea To Summit Comfort Plus sleeping mats use dual layer construction to give you the most effective system for fine-tuning your comfort level available in any air mattress.__ The two independent offset high-resolution cell layers support and distribute your body weight and shape, with uniform insulation and cushioning. They can be pressurised independently, so you can inflate the top layer to your personal comfort, while maintaining a high-pressure base layer for protection from rough or uneven terrain. Both layers can be adjusted independently using the fine tune valve to give the perfect level of softness and support.__ All Sea to Summit sleeping mats come with a quality stuff sack, a repair kit containing six self adhesive patches for repairing punctures in the field, and a spare silicone one-way valve flap.____Dual layer technology with Exkin Platinum & Thermolite insulation: Exkin Platinum is a quiet non-woven fabric that reflects radiant heat loss back towards you. Thermolite insulation prevents convective heat loss between your body and the ground.__Weight: 785gSize: 183cm x 55cm Size when rolled: 23cm x 12cm diameter548 air sprung cells___ You also get a free Sea to Summit Air Stream Pump Sack which can be inflated with a single breath, and within just two to three cycles your sleeping mat will be fully inflated and ready to go.__ There will be minimal breath condensation inside and you won't feel dizzy from blowing the mat up, and what's even better is that it can be used as a 20L dry sack to store your gear safely when on the move. __Inflates most sleeping mats in only two or three breathsOval base designFully seam sealed with sealable valve plugMade from lightweight 15D UltraSilWeight: 62g