Sea to Summit Trek TK II


spring 2010 short regular long
Weight 2 lb 3 oz / 1000 g 2 lb 4 oz / 1020 g 2 lb 7 oz / 1110 g
Fill weight 1 lb 2 oz / 500 g 1 lb 2 oz / 500 g 1 lb 3 oz / 550 g
EN comfort 30 F / -1 C
EN lower limit 18 F / -8 C
EN extreme -13 F / -25 C
Fill 650-fill duck down
Shape Semi-rectangular
Max user height 5 ft 7 in / 170 cm 6 ft 0 in / 185 cm 6 ft 8 in / 205 cm
Shoulder girth 59 in / 150 cm 60 in / 152 cm 61 in / 156 cm
Hip girth 58 in / 148 cm 59 in / 150 cm 60 in / 152 cm
Foot girth 39 in / 100 cm 40 in / 101 cm 40 in / 102 cm

Manufacturer's Description

Visit Sea to Summit's Trek TK II page.

Retailers' Descriptions

Here's what other sites are saying:

This lightweight 3-season bag has a roomy semirectangular shape and high-loft water-resistant down insulation for excellent warmth and compressibility.


Incorporating their 2D PermaShell fabric and a premium 650 loft down, Sea to Summit 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 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.


Built for those who like a little extra wiggle room but still want to stay cozy, the Sea to Summit Trek TkII features a semirectangular shape to give you the best of both worlds. This versatile sleeping bag is a great choice for everything from weekend backpacking trips to month-long globe-trotting excursions.


Free Shipping. Sea to Summit Trek TKII Sleeping Bag FEATURES of the Sea to Summit Trek TKII Sleeping Bag Tapered rectangular 2D PermaShell DWR shell fabric Ultra-Dry Down 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 YKK5 zips with separate foot zip Large sized internal zip pocket Includes lightweight Ultra-Sil compression bag, mesh storage cell and laundry bag SPECIFICATIONS of the Sea to Summit Trek TKII Sleeping Bag Comfort: 30deg F / -1deg C Lower Limit: 18deg F / -8deg C Extreme: -13deg F / -25deg C Ultra-Dry Down 650+ Loft 85% Down Cluster Premium Duck Down Season Rating: Indoor/Summer/Spring/Autumn Suggested Use: Backpacking, travel, hiking, camping Compressed Volume: 6 liter Compression Bag: Small: 10 to 3.3 liter SPECIFICATIONS for Short Fill Weight: 17.6 oz / 500 g Bag Weight: 2 lbs 3 oz / 1000 g Length / Zip Option: Right zip SPECIFICATIONS for Regular Fill Weight: 17.6 oz / 500 g Bag Weight: 2 lbs 4 oz / 1020 g Length / Zip Option: Left or right zip SPECIFICATIONS for Long Fill Weight: 19.4 oz / 550 g Bag Weight: 2 lbs 7 oz / 1110 g Length / Zip Option: Left zip

- Moosejaw