Sea to Summit Trek TkIII Down sleeping bag (Regular, blue) - When the temperatures drop, the Trek TkIII down sleeping bag is the way to go. It’s a reliable option for trekking, hiking or a cold night in the great outdoors when the temperatures are hovering around freezing.Featuring a tough outer shell and water-repellent down insulation, this bag is ready to withstand moisture from the outside or condensation on the inside. The lightweight material keeps the bag light and the pack size to a minimum. The vertical chest baffles prevent the down shifting and cold spots forming, whilst the 3D side-wall baffle ensures that down can loft to the edge of the bag, thereby maximising insulation and preventing you from freezing. The hood helps here as well and comes with a drawcord to cinch it around your face. If you get too hot, you can adjust the hood so that it lies flat and heat doesn’t build up. The bag comes equipped with a 2-way YKK zip on the side you can use to pair it with a second sleeping bag, which is perfect for couples. The zip at the foot box allows you to convert the bag into a blanket. As for storage, there is a practical inside pocket for batteries or a wallet. A stuff sack is included.You’ll always be on the safe side with this warm and cosy sleeping bag! Plus, it’s also an incredible value!