Sea to Summit


Sea to Summit Explore Series - Down Sleeping Bags


We accept Afterpay and Zip ($100min/$1000max)

Ideal for those who love space, versatility and plush comfort. This bag is perfect for outdoor adventures that return to the camp site each evening, for car camping road trips, crag-hopping van life or hut-based expeditions.

The spacious rectangular shape, with an ultra-wide circumference is ideal if you love freedom of movement and hate that tight sleeping bag feeling. And no matter which way the weather turns, the Explore can be modified to suit. Zip yourself in and pull the internal drawcords tight to combat the cold. When the temperature heats up, the multiple-zips allow you to poke your toes out if you need a little fresh air or separate the top from the bottom of the bag and use it as a standalone quilt.

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. A side block baffle construction maintains the 60/40 fill ratio, keeping more down on the top of the bag for maximum insulation.

The generous allocation of high quality 750+ Loft down ensures great insulation, while the oversized draft tubes prevents your body heat escaping. The panelled foot-box and 3-dimensional hood make sure you’re not compressing the down when you’re trying to stay warm.

Designed to integrate with all Sea to Summit sleeping mats and to create the ultimate in sleep system comfort, the Explore utilises simple removable adjustable webbing loops to connect your mat to your bag.

Camping couples have not been forgotten—the four-season Explore ExIII is also available as a double for getting cosy under the covers with your favourite campsite companion. The mat attachment system on the double allows use of two single or one double mat and holds the mat secure under your Explore double bag.


  • Spacious contoured rectangular shape
  • Six #5 YKK zip sliders on three two-way zips for ultimate ventilation and climate control
  • Multi-zip configuration converts bag to a standalone quilt for warmer conditions
  • RDS 750+ Loft ULTRA-DRY Down offers superior insulating power
  • Vertical chest baffles prevent down migration and cold spots
  • Oversized draft tubes prevent heat loss through zippers
  • Generously sized hood and dual cord adjustment for maximum warmth retention
  • Simple adjustable webbing loop system connects sleeping mat to bag
  • 30D Nylon shell and 20D Nylon lining
  • Large internal security pocket
  • Includes lightweight Ultra-Sil compression bag for compact storage


  • Shell: 100% Nylon
  • Lining: 100% Nylon
  • Primary Filling Material: DUCK DOWN (Min. 90% Down)
  • Stuffsack: 100% Nylon excluding Trims

Size Variation

Type User Height Weight Fill Weight Chest Hip Foot
EX II - Regular Up to 183cm 1095g 450g 194cm 190cm 142cm
EX III - Regular Up to 183cm 1395g 750g 194cm 190cm 142cm

Temperature Rating

Type Comfort Lower Limit Extreme
EX II 3℃ -3℃ -19℃
EX III -6℃ -13℃ -32℃