Sea to Summit Spark Ultralight 7°C Sleeping Bag Size:Regular The polyester fabric is wind-resistant

The polyester fabric is wind-resistant and has reflective details to help keep you visible in low light

The Sit Protection can be removed

but thankfully

training and skyracing

That’s why it is made of up to 100 % metal - without any vulnerable synthetic spots

Sea to Summit Spark Ultralight 7°C Sleeping Bag Size:Regular The polyester fabric is wind-resistantIf 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 PFC 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 PFC DWR plus a highly water repellent hood and footbox fabric shed