Sea To Summit Trek TKI Down Sleeping Bag, 760g

$429.99 $379.00



Updated version Sea To Summit Trek TKI - Comfort, versatility and value in a classic tapered rectangular down bag. 

A great all round sleeping bag, insulated with water-resistant duck down (Responsible Down Standard certified) for warmth and compressibility, ideal for colder temps with ratings 5°C to -1°C comfort limit. The sleeping bag is semi-rectangular in shape, wider than a mummy bag for some extra room to move from hips through to feet. Ideal for hiking and camping with bag weighing just 760g. Compresses down to 4.6 L and comes with its own compression bag.  




  • Large internal security pocket
  • 3D hood draws in tight when needed
  • Foot zip for extra ventilation or to provide freedom of movement for your feet
  • Tapered rectangular for more space and comfort than a traditional mummy bag.
  • RDS 650+ Loft ULTRA-DRY Down™ offers excellent insulation and compressibility
  • Soft touch 20D lining fabric is lightweight and highly breathable, durable 30D Nylon shell, Lightweight fabrics for reduced weight and bulk
  • Vertical baffles over the chest section ensure the down insulation cannot migrate or shift to the outside of the bag during sleep, creating cold spots
  • Oversized zip draft tube with anti-snag materials
  • A side block baffle construction maintains the 60/40 fill ratio, keeping more down on the top of the bag for maximum insulation
  • Trek Tk1 has baffled top and stitch through base construction
  • Includes lightweight Ultra-Sil™ compression bag and storage cell bag.


  • Temp ratings: 5°C comfort, -1°C lower limit, -16°C extreme
  • Recommended User Height up to 183 cm
  • Packed Dimensions ø18 x 40 cm
  • Volume Compressed 4.6 L
  • Compression Sack Volume (Compressed) 10 to 3.3 L
  • Weight 760g
  • Internal Chest Circumference 152cm, Internal Hip Circumference 146cm, Internal Foot Circumference 102cm
  • Shell: 100% Nylon, Lining: 100% Nylon,
  • Primary Filling Material: Duck Down (Min. 85% Down) Responsible Down Standard certified, Fill Weight 350g 
  • Two-way #5 YKK side and separate foot zip allows bag to double as a quilt and provides extra ventilation options
  • Shell: 100% Nylon, Lining: 100% Nylon,
  • Primary Filling Material: Duck Down (Min. 85% Down) Responsible Down Standard certified
  • Stuff sack: 100% Nylon excluding Trims



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