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FEATURES of the Sea to Summit Spark SPII Sleeping Bag
850+ loft Ultra-Dry Down
1/3 length 3 YKK zipper
Sew-through transverse baffle construction
Includes lightweight Ultra-Sil compression bag, mesh storage cell and laundry bag
Sleeping Bag Shell:
10D UL Nylon treated with DWR
Sea to Summit UL 10 Denier Nylon, Sea to Summit ULTRA-DRY Down
Sleeping Bag Lining:
15D nylon soft touch, high density weave
Fill Weight (Regular):
Hiking, Ultralight Backpacking, Backpacking, Mountaineering and Alpine, Travel
Exact Temperature Rating:
35 Degrees Fahrenheit
Sleeping Bag Shape:
Bag Weight (Regular):
1 lb,0.4 oz
850+ Loft ULTRA-DRY Down
31 - 40 Degrees Fahrenheit
Max User Height (Regular):
UL 10 Denier Nylon
UL 10 Denier Nylon is an ultralight, downproof fabric. The nylon weave protects down from abrasion and elements, with an incredibly minimal weight. The thin fabric is extremely packable for less bulk in your pack. It is coated in a durable water repellent finish to repel water, especially from the sides of your tent.
Sea to Summit ULTRA-DRY Down
ULTRA-DRY Down is a treated insulator for Sea to Summit sleeping bags. ULTRA-DRY treated down repels moisture, so when your environment is damp, your gear stands a much better chance. The down will retain its loft, dry faster and is even anti-bacterial and anti-microbial, improving their life span. When conditions are bad, your bag doesn't have to be.
Rated 3 out of
Very TightI needed a light bag for bikepacking. It was certainly light and it packs up incredibly small...it's really amazing, actually, how small you can get it.
This was my first mummy bag. Maybe I just don't like mummy bags but it was very tight and claustrophobic.
I didn't actually use it in the field so take my rating with a grain of salt. I'm 5'11" with a 48 inch chest so maybe it's just me.