Sea to Summit Trailhead Synthetic Sleeping Bag 20

The Sea to Summit Trailhead Synthetic Sleeping Bag 20 is a three-season mummy bag built around WaveLoft synthetic insulation. The manufacturer-rated comfort of -1°C and limit of -7°C put it in typical spring-to-autumn territory, but at 1,370 g it sits in the heavier end of the category — a trade-off for durability and price rather than minimal weight. Unlike down, WaveLoft insulation keeps insulating when damp and tolerates rougher handling, which suits beginners or trips into wetter conditions. A full-length, two-way YKK #5 zipper with a snag-free guard and draft tube lets the bag open completely flat for use as a quilt, and the 20D nylon liner carries a DWR finish for extra moisture resistance. Sized for users up to 182 cm, it packs into its stuff sack at 10.2 L and the insulation is PFC-free. Given its weight, it suits car camping and weekend trips better than multi-day ultralight treks where pack weight is the main concern.