Sea to Summit Traveller Sleeping Bag & Blanket 30

The Sea to Summit Traveller Sleeping Bag & Blanket 30 is a lightweight rectangular down bag that unzips completely to double as a blanket. Manufacturer-rated at 5°C comfort and -1°C limit, it sits toward the lighter end of three-season bags, better suited to travel and lower-elevation trips than winter trekking. The fill is 350 g of 750 fill power goose down at a 90/10 ratio with a hydrophobic treatment against moisture. Sewn-through baffles with horizontal chambers keep the down in place, though this construction typically allows more cold spots than box baffles on thinner bags. A 15D nylon shell and 20D polyester liner keep total weight to 645 g; there's no hood or draft collar, which fits a travel-oriented rather than expedition-oriented design. Sized for users up to 183 cm, it can be zipped to a second bag for double-bag use and packs into a storage sack and a compression sack. The down carries RDS certification and the shell uses recycled material — a solid pick for light travel, hostels, or warmer summer treks where a simpler construction is enough.