Sea to Summit Spark Down Sleeping Bag RDS Bike Racks Special membrane ensures that conditions

Special membrane ensures that conditions inside the boot are perfect: dry

see Secret Chain Blend

Inspired by the popular adult-sized version

Loops for Instep Stirrup

Chain KMC HV500

Sea to Summit Spark Down Sleeping Bag RDS Bike Racks Special membrane ensures that conditionsIf you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS certified 850+ fillpower goose down treated with a non PFAS Ultra Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super breathable 10 denier liner fabric, while a 10D shell with a non PFAS DWR plus a highly water repellent hood and footbox fabric shed