Sea To Summit Spark Down Sleeping Bag H2O Purification External webbing straps provide additional

External webbing straps provide additional clipping points

Seamless 3D Construction

Light yet durable shell is made of Pertex® 3D Weave 100% recycled nylon with a ripstop face and a plain-weave main body liner

lithium-ion battery

Sea To Summit Spark Down Sleeping Bag H2O Purification External webbing straps provide additionalIf 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