Trek TkII 18 Sleeping Bag
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Thumbnail 1
Trek TkII 18 Sleeping Bag
Tech Specs

Specifications are maintained on Pack4Back GearDB (community edits and revision history). Values may differ from the manufacturer or your unit—verify before buying.

Best UseBackpacking
Tested Lower Limit18 degrees (F) - EN
Tested Comfort30 degrees (F) - EN
Temperature Rating (F)18 degrees (F)
Temperature Rating (C)-7.8 degrees (C)
WeightRegular: 2 lbs. 2 oz.
Shell30-denier nylon
Zipper LocationLeft
Insulation TypeDown
Water-Resistant DownYes
Fill650-fill-power Ultra-Dry down
Fill WeightRegular: 1 lb. 2 oz.
Lining20-denier nylon
Sleeping Bag ShapeSemirectangular
Fits Up To (in.)Regular: 72 inches
Shoulder Girth (in.)Regular: 60 inches
Hip Girth (in.)Regular: 57 inches
Stuff Sack SizeUnavailable
Stuff Sack VolumeRegular: 10 liters
Compressed VolumeRegular: 6.1 liters
GenderUnisex
SustainabilityDown certified to the Responsible Down Standard (RDS)
Description

With a tapered rectangular shape that offers more room than a mummy bag, the Sea to Summit Trek TkII sleeping bag keeps you warm via water-resistant, RDS-certified 650-fill-power down.

Features
  • Water-repellent, 650-fill-power Ultra-Dry Down™ retains 60% more loft and absorbs 30% less moisture than untreated down; down is also PFC-free and RDS-certified
  • Responsible Down Standard (RDS) ensures the down does not come from animals that have been subject to any unnecessary harm, such as force-feeding or live-plucking
  • Tapered rectangular shape offers more space than a traditional mummy bag while maintaining thermal efficiency
  • Nylon shell fabric is treated with a durable water repellent (DWR) finish that sheds moisture and helps block wind
  • Vertical chest baffles prevent down migration and 3D sidewall baffle maximizes loft right to the edge of the bag to prevent cold spots
  • 2-way #5 YKK® side and foot zippers let you ventilate as needed; oversized zip draft tube keeps out the drafts, while antisnag materials make for smooth zipping
  • 3D hood draws in tight to keep you cozy; neck collar draft tube seals in warmth
  • 20-denier lining fabric is lightweight and soft on your skin
  • Internal security pocket keeps nighttime essentials close at hand
  • Comes with an Ultra-Sil™ compression sack and a nylon storage sack
  • This bag is designed to zip together with another to create a double bag