Regular price $349.00 Sale price $293.16
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TrekI EN scales

The lightest of all Sea to Summit's Trek sleeping bags, ideal for globetrotters travelling to Glastonbury or Rio.

Incorporating Sea To Summit's 2D PermaShell™ fabric and a premium 650+ Loft ULTRA-DRY Down™, the 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 Trek series is a great choice for adventure travel and globe-trotting. Whether sleeping in hostels throughout Europe, backpacking South America or discovering the Stirling Ranges in Western Australia.

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.


Tapered rectangular; 2D PermaShell™ DWR shell fabric; differential cut shell with 3D side walls; 60/40 fill ratio; side block baffle; zip draft tube with anti-snag; cushioned internal hood draw-cord with dual adjustment; 2 way YKK #5 zips with separate foot zip; large sized internal zip pocket; includes lightweight Ultra-Sil® compression bag and a combined storage cell / laundry bag.

Down: ULTRA-DRY Down™ 650+ Loft 85/15 Premium Duck Down

Fill weight: Regular 350g | 12oz Long 400g | 14oz

Bag weight: Regular 830g | 1lb 13oz Long 915g | 2lb

Length / zip options: Regular - left or right zip Long - left zip

Season Ratings: Indoor/Summer

Suggested use: Trekking, Travel, Hiking, Camping

Compressed volume*: 5.1 litres

Compression bag: Small - 10 to 3.3 litres