The Robens Serac 300 is a lightweight synthetic mummy sleeping bag built for three-season camping and backpacking. It’s designed to keep you comfortably insulated on cool nights while still packing down small enough to tuck into your pack.
Weighing 0.84 kg and compressing to about 26 × 16 cm, the Serac 300 sits in the superlight category around 0 °C, so it won’t weigh you down on longer treks. With an 85 cm shoulder width, 53 cm foot box and 220 cm overall length (suitable for users up to around 190 cm tall), there’s enough room to move without excess bulk. The bag is rated to a comfort level of 2 °C for women and −4 °C for men, making it versatile for cool-weather outings.
The outer shell uses 20D 400T nylon ripstop, meaning fine 20-denier threads woven in a grid pattern to resist tears, while the recycled 50D 300T polyester taffeta lining feels soft against your skin. The synthetic insulation maintains its loft and warmth even if it gets damp, so you stay cozy even in humid conditions.