Sea to Summit Trek TkI Down sleeping bag (Long, blue) - Regardless of whether you’re staying in a hostel or sleeping in a tent, the Trek TkI down sleeping bag from Sea to Summit will keep you comfortable! The lightweight and packable sleeping bag boasts a tough outer shell and down insulation for optimal warmth. The down has been treated with a water repellent to shield it from moisture from the outside and condensation on the inside. There are vertical baffles at the chest to prevent cold spots and distribute warmth evenly. For maximum insulation, the Trek TkI features a 3D side-wall baffle, which allows the down to loft to the very edge of the sleeping bag. The hood comes complete with a drawstring so that you can cinch it up and seal out the cold. If it gets too warm, you can adjust the hood so that it lies flat and heat doesn’t accumulate on the interior. The bag also features a 2-way YKK zip for easy entry and connecting it to another sleeping bag. Perfect for couples! Lastly, there’s a zip at the foot box to convert the sleeping bag into a blanket.An lightweight option for both big and small adventures!