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.


Free Shipping. Sea to Summit Trek TKII Sleeping Bag FEATURES of the Sea to Summit Trek TKII Sleeping Bag ULTRA-DRYDown 650+ Loft 85Adeg Down Cluster Premium Duck Down Length / zip options: Regular - left or right zip Long - left zip Season ratings: Indoor/Summer

- Moosejaw

Your summer treks just got a heck of a lot easier, comfier, and more fun with Sea To Summit's Trek Tk II Sleeping Bag. Pairing ULTRA-DRYDown with a breathable liner and some convenient storage turns this bag into one that you'll want on every one of your summer escapades. Easy to pack, store, and rest in, you'll have a pretty hard time finding a spot that you won't love resting in your Trek Tk II Sleeping Bag. PRODUCT FEATURES: Down: ULTRA-DRYDown 650+ Loft 85% Down Cluster Premium Duck Down Compressed Size: 6 liter Fill Weight: 17.6 oz/500g Bag Weight: 2 lb 4 oz/1020g Season ratings: Indoor/Summer Temp Rating: 18 F (EN Lower Limit)/-8 C (EN Lower Limit) Shell material is highly vapor permeable and downproof Lining is a breathable, durable 40-denier nylon fabric with a soft touch Full-length side zipper and foot zipper allow bag to be converted from traditional sleeping bag to a duvet/down comforter Semirectangular shape provides more room than a mummy bag for a more comfortable sleeping bag while maintaining thermal efficiency Differentially cut inner layer is smaller than the outer layer to create a consistent thickness of insulation that precludes cold spots Oversize draft tube backing the 2-way zipper keeps the warmth in and the cold out; zipper is backed by stiff, antisnag tape for smooth operation Large interior secuity pocket is great for stowing a few essentials, alleviating middle-of-the-night fumbling Baffle construction allows the goose down to remain fully lofted and keeps it from shifting

- Appalachian Outdoors

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.. . . . Tapered rectangular cut offers a good compromise between the comfort of a rectangular bag and the warmth of a mummy bag. 650+ Fill Power Premium European duck down is a high quality insulation treated with ULTRA-DRY Down~ ULTRA-DRY Down treatment is a permanent nano-level water repellent polymer that vastly improves the down's reaction to water without affecting its weight or loft performance~ ULTRA-DRY also inhibits bacterial and microbial growth, making the bag more hygienic and long-lasting~ Treated down retains over 60% more loft, absorbs 30% less moisture, and dries 60% faster compared to untreated down. Highly vapor-permeable 2D PermaShell fabric is a high-density weave 33D nylon with a DWR finish. High-density weave 40D nylon lining is engineered for comfort, using a high thread count to create a soft surface and silky hand feel. Differential cut shell and lining helps the down loft correctly for superior thermal efficiency. Offset baffle construction provides a stable structure that allows the down to loft to the right density and minimizes loss of heat through seams. Two-dimensional hood easily cinches into a form-fitted profile using the dual-adjustment drawcord to seal in the warmth. YKK #5 reverse zipper allows you to unzip the bag from top and bottom for better temperature regulationFull-length side zipper and foot zipper