• Weight-efficient Contour shape is ideal for side-sleepers
• Full-length side zipper with double sliders extends through the footbox for customisable ventilation or to open the Hamlin as a quilt. The secondary side zipper provides arms-free functionality
• Technical hood, a draught collar and draught tubes retain your warmth on chilly evenings
• Soft, packable, recycled insulation is strategically placed to enhance core warmth
• YKK #5 zipper with zip plough provides reliable, snag-free operation
• Your purchase gives back. 1% of each Hamelin Synthetic Sleeping Bag sale supports 1% for the Planet® partners preserving biodiversity
• Temperature ratings are ISO tested

Weight

-1C|30F - R: 1124g
-1C|30F - L: 1263g
-9C|15F - R: 1626g
-9C|15F - L: 1837g

Certification

RCS - 1114661

Material

Outer: 20D bluesign APPROVED, recycled polyester with non-PFAS DWR
Inner: 20D bluesign APPROVED recycled polyester liner
Insulation: 100% RCS-certified, post-consumer, recycled, multi-Denier synthetic insulation

Internal chest circumference

R: 158cm
L: 168cm

Internal hip circumference

R: 146cm
L: 156cm

Internal foot circumference

R: 119cm
L: 129cm

Ideal for

Light Trekking, Backpacking - especially in wet conditions, Paddle Touring, Car Camping

Packed dimensions

-1C|30F - R: 41 x 27.5 x 18cm
-1C|30F - L: 41 x 27.5 x 18cm
-9C|15F - R: 47 x 30 x 20cm
-9C|15F - L: 47 x 30 x 20cm

Compressed volume

-1C|30F - R: 8.4L
-1C|30F - L: 9.6L
-9C|15F - R: 14L
-9C|15F - L: 16L

Recommended user height

R: 185cm
L: 198cm

Includes

Compression Sack

Fill weight

-1C|30F - R: 710g
-1C|30F - L: 805g
-9C|15F - R: 1210g
-9C|15F - L: 1375g

Insulation type

Synthetic insulation

Zipper configuration

Left sided YKK #5 two way full zipper + right sided YKK #5 two way half zipper

Sea to Summit tests all of its sleeping bags according to the ISO 23537 standard. This test presupposes that a sleeper is

• dressed in expedition-weight base layers
• wearing an insulated cap
• using a sleeping mat with an R-Value of 5+

The ISO test produces three temperature ratings, two of which Sea to Summit publishes as above in these specifications.

• Sea to Summit publishes the temperature ratings provided by the ISO-certified lab - the figures are not rounded down or altered.
• this rating is a guideline, not a guarantee

Factors that can affect performance include air humidity and how well the down is distributed in the baffles (the latter involves vigorously shaking the bag prior to use)

Other factors that affect performance is the physical condition of the sleeper, levels of hydration and fatique.