Sea to Summit Trek TK I

Specs

spring 2011 regular long
Weight 1 lb 13 oz / 830 g 2 lb 2 oz / 970 g
Fill weight 12 oz / 350 g 14 oz / 400 g
EN comfort 41 F / 5 C
EN lower limit 32 F / 0 C
EN extreme 5 F / -15 C
Fill 650-fill duck down
Shape Semi-rectangular
Max user height 6 ft 0 in / 180 cm 6 ft 8 in / 200 cm
Shoulder girth 60 in / 152 cm 61 in / 156 cm
Hip girth 59 in / 150 cm 60 in / 152 cm
Foot girth 40 in / 101 cm 40 in / 102 cm

Manufacturer's Description

Visit Sea to Summit's Trek TK I page.

Retailers' Descriptions

Here's what other sites are saying:

Your trekking buddy's balloon-like synthetic sleeping bag fills his whole backpack; your Sea To Summit Trek TkI 32 Degree Down Sleeping Bag compresses down to the size of three water bottles, so you have room for the essentials plus a few souvenirs. It's stuffed with lofty, moisture-resistant Ultra-Dry Down 650+ and sheltered with breathable, weather-repelling 2D Perma Shell, so when the going gets cold or damp your bag won't wilt or freeze. And a cushioned hood, draft tube, and tapered rectangular shape will keep you so cozy you'll sleep like a baby. Now only if your partner would stop whimpering.

- Backcountry.com

Insulated with high-loft water-resistant down for excellent warmth and compressibility, this lightweight 3-season bag has a semirectangular shape that provides a little extra room to shift about.

- REI

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.

- CampSaver.com

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 regulation.

- EMS