Design and Details Lightweight insulation piece; take it on your summer backpacking adventures or use it to add additional warmth to your sleeping bag Stands alone as a great minimalist solution to the weight vs. warmth quandary Keep your sleeping bag clean and protected while increasing the temperature rating of your bag DownTek water repellent down repels water while maintaining insulating value (McKinnis) PrimaLoff Silver (Farrington) 3/4 Zip allows for venting when you need it and thermal protection when you don't Minimalist cinch hood closure Hooks located at the head and foot allow for easy attachment to sleeping bag liner loops Mesh storage sack and nylon stuff sack