Contact Us

Sea to Summit

Trek TkIII Sleeping Bag

5.0 2
Free delivery to most of Australia!
Same day dispatch
Easy 60 day returns

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
4 stars
3 stars
2 stars
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

Be the first to ask a question

Delivery to

Pick up from Snowys

92 Richmond Rd, Keswick SA

Opening hours:
Mon - Fri: 9am - 5.30pm
Saturday: 9am - 5pm
Sunday: 12pm - 5pm
Back to top