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5.0 2

Sea to Summit

Trek TkIII Sleeping Bag

From $344.90
or 4 easy payments of $86.23 with

Delivery estimate to:

Pickup from our store

92 Richmond Rd, Keswick SA Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 12pm - 5pm
17 Doherty St, Brendale QLD Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 9.30am - 2.30pm

The warmest bag in the Sea to Summit Trek range of sleeping bags, the TkII is made especially for those who like the tapered design of a mummy bag, but with the addition of some extra room to move.

The bag incorporates highly breathable 2D PermaShell™ fabric which will keep your down in tip top shape. The tapered rectangle design makes the Trek ideal for people with a larger frame or who prefer a roomy bag. The full-length side and foot zips mean you can zip it wide open and use it as a quilt for balmier nights, or have your feet poking out if you need some air flow while you sleep. And, in colder weather, the two-dimensional hood is will help trap warmth for a soundless night’s sleep in the elements.

Featuring an oversize internal pocket that’s big enough to keep your wallet, passport, and gadgets close while you doze. The included lightweight Ultra-Sil® compression bag will compress the bag down to a mere 6L for easy packing.The Trek TkIII is a bag for the adventurer wanting a freer night sleep, but with the closeness and warmth to get them through a cold night in the hut.

  • Breathable 2D PermaShell™ fabric
  • Tapered rectangular design
  • Oversized internal zippered pocket
  • Lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag included
Snowys Code:
Supplier Code:
Comfort Temp. Rating:
-5 °C
Lower Temp. Limit:
-11 °C
Tapered Rectangular
Fill Ratio Top/Bottom:
60 / 40
Max. User Height:
183 cm
Internal Girth:
152 cm Chest | 146 cm Hip | 102 cm Foot
External Dimensions:
203L x 68W x 6H cm
Packed Dimensions:
40L x 20W x 20H cm
Compressed Volume:
7.05 L
2D PermaShell™ 33D Nylon with DWR
Fill Material:
650+ Loft Ultra Dry™ Premium Duck Down
Fill Weight:
700 g
Soft Touch Nylon
Zip Draft Tube:
With Anti-Snag
Neck Draft Tube:
Dual YKK #5
1.190 Kg
Suggested Use:
Trekking | Camping
Limited Lifetime
5.0 2
5 stars
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1 star
Aug 16 2017


Warm enough for Winter in the mountains in Australia

- Sydney
Apr 20 2017

Amazingly warm and comfortable

I'm 6'1 and had no problems snuggling in above my shoulders in the Long size. Very roomy if you don't like mummy-style bags.

If anything it is TOO warm unless you're a warm sleeper (I'm not), the temperature is really low (15 degrees in a 4-season tent isn't), or you open it right out and use it more like a quilt (I eventually did).

- Elsternwick

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