Thermarest luxurylite cot warmer gray description featuring thermacapture radiant heat technology the luxurylite cot warmer increases the temperature performance of your cot by 10 15 degrees taking your cot from 1 to 3season warmth the thermal reflective lining captures your bodys heat and efficiently adds warmth with virtually no added weight or bulk an easy warmth upgrade for backpacking overnight paddling trips or adventure touring the lightweight packable cot warmer easily attac