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Sea To Summit - Trek TK III

The classic tapered rectangular sleeping bag - redefined!

Incorporating Sea to Summit's 2D PermaShell™ fabric and a premium 650 loft down, the Trek bags are a refined classic. The 60/40 fill ratio in the Trek bags is maintained using a side block baffle and differential cut shell. In the top of the shell a 3D side wall, a feature normally reserved for technical alpine sleeping bags, provides more space for the down to loft right to the edge of the bag.

An oversized security pocket located inside the bag is easily accessible, ideal for stashing passports and other valuables while travelling. The soft touch lining fabric is down proof by construction and highly breathable offering a comfortable sleep.

The Trek series is Sea to Summit's choice for adventure travel and globe-trotting. Whether sleeping in hostels throughout Europe, backpacking South America or discovering the Stirling Ranges in Western Australia.

Tapered rectangular sleeping bags

The tapered rectangular design offers a good compromise between the comfort of a generous cut shape and warmth of a closer fit. A full length side and foot zip allow the Trek series to be opened out into a full duvet for use indoors and warm weather.

Ultra-Dry Down:
-- Repels Moisture
-- Retains Loft
-- Dries Faster
-- Anti-bacterial and Anti-microbial
-- Prolongs the life of your sleeping bag

Technical specifications & features

Weight SHORT: 2 lbs 10 oz. (1200 g)
REGULAR: 2 lbs 11 oz. (1220 g)
LONG: 2 lbs 14 oz. (1310 g)
Gender Men's & Unisex
Mfg Sku/Part Number 043
Bag Style Semi-Rectangular
Seasonal Usage Three Season
Insulation Ultra-Dry Down™, 650+ Loft, 85% Down cluster, premium Duck Down
Fill Ratio (top/bottom): 60/40
Fill Weight SHORT: 24.69 oz. (700 g)
REGULAR: 24.69 oz. (700 g)
LONG: 26.46 oz. (750 g)
Bag Shell Material Shell Design: Differential cut shell with 3D side walls
2D PermaShell™ 33D nylon with DWR, 342T High-density down proof weave
Bag Lining Material 40D soft touch lining, 310T high-density down proof weave, 34 filament soft touch hand feel
Bag Length SHORT: 5 ft. 5 in.
REGULAR: 6 ft. 0 in.
LONG: 6 ft. 7 in.
Bag Stuff Size Medium - 15 L to 5 L
Circumference at Chest SHORT: 59.05 in.
REGULAR: 59.84 in.
LONG: 61.42 in.
Circumference at Hips SHORT: 58.27 in.
REGULAR: 59.02 in.
LONG: 59.84 in.
Circumference at Foot SHORT: 39.37 in.
REGULAR: 39.76 in.
LONG: 40.16 in.
Other Features TEMP RATING
12 F (EN Lower Limit) /-11 C (EN Lower Limit)

Tapered rectangular, 2D PermaShell™ DWR shell fabric, differential cut shell with 3D side walls, 60/40 fill ratio, side block baffle, zip draft tube with anti-snag, cushioned internal hood drawcord with dual adjustment, 2 way YKK #5 zips with separate foot zip, large sized internal zip pocket, includes lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag.

Zip Draft Tube: Yes, with anti-snag
Neck Draft Tube: No
Foot Opening: YKK #5 reverse zip + draft tube
Security Pocket: Large internal pocket
Zip: YKK #5 reverse zip

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Questions & Answers

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When will this item be available? It says it is backordered at this time. Thank you.
8
Question by: NurseShaun on Jun 5, 2014 4:26:48 PM
What is the stuff bag size for a large bag?
4
Question by: Scot on Jan 9, 2016 9:29:00 PM
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