R-300 Sleeping Bag

Temp. Guide

​​Comfort: ​-12°C (10°F)
Limit: ​-20°C (-4°F)

Carry Weight

​​​​4.7 lbs (2.1 kg)


$128.99 CAD

The R-300 works as a lightweight and compact 3-4 season camping sleeping bag. The rectangular shape provides lots of space for a comfortable sleep, and the added insulated hood helps keep all the warmth in.

Out of stock

Shape: RectangularCritical Layer Construction
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  • Insulated sculpted hood provides secure fit and more warmth
  • Suresoft brushed polyester lining is warm and comfortable
  • Drawcord at shoulder – use it to trap heat in and keep the cold out
  • 2-way nylon coil zipper allows for venting at foot; reversible slider with hi visibility fabric
  • Anti-snag zipper tape, and insulated draft tube behind zipper
  • 4 fabric loops allow for attached cord to hold sleeping pad in place
  • Compression carry bag with 2 YKK quick release buckles
  • Hotcore sleeping bags of the same dimensions can be opened and zipped together around the outside edge
  • A few words on temperature ratings…
  • Hotcore Sleeping Bag Owner’s Manual and Warranty Information


Hi guys! Just bought a sleeping bag yesterday – a -20C green rectangular one (R-300), and man am I pleased with it! I’m just under 6ft tall, 120 lbs, and as a tall, skinny, adventuresome woman, could not find a sleeping bag that fit my body anywhere! You guys rock; this is just what I’m looking for!

​~Suzanne – Burnaby, British Columbia

I just return from a 2 week hunting adventure in Northern BC. I can’t say enough about my R-300 sleeping bag. It kept me warm on the coldest nights, even when the water bucket froze solid and comfortable / not too hot on the warmer nights. Outstanding value and as good an all-around sleeping bag as I have ever owned.

​~ Neil – Salmon Arm, British Columbia




Rectangular with insulated hood


78″ long plus 12″ insulated hood
​(198cm + 30cm)


34″ wide (86cm)

Carry Weight

4.7 lbs (2.1 kg)

Carry Size

16″ long, 8.5″ diameter (40cm x 22cm)

Temperature Guide

Comfort: ​-12°C (10°F)
Limit: ​-20°C (-4°F)
A few words on temperature ratings…


​Siliconized TrueLoft microfibre insulation with Critical Layer Construction

Outer Fabric

Polyester ripstop with light DWR coating
Colour: Pickle Green

Inner Fabric

Soft-touch Pongee polyester


#5, 2-way nylon coil self-healing zipper
High visibility fabric zipper pull

* all measures approximate

Critical Layer Construction

We use thermal body-mapping construction to place the insulation where it will do the most good. You already have an insulating sleeping mat below you, and most of the sleeping bag insulation that is below will be compressed by your body weight, making it inefficient. We move much of this insulation to the top of our sleeping bags where it will trap warmth from your body.

Then we add an extra layer of TrueLoft™ insulation in the core body area, from the neckline to below the beltline, to help achieve and maintain the temperature ratings. This extra layer of insulation will trap more warmth from the body than comparable sleeping bags, while adding very little to the weight, size, and cost of the sleeping bag. Think of it as putting on a jacket, the first thing we all do when we need to stay warm.

We call this Critical Layer Construction.

High quality TrueLoft™ micro fibre synthetic insulation traps more warm air between its fibers than traditional insulations with the same loft. This gives you a warm, soft sleeping bag in a compact and lightweight size.

  • Lightweight – some of the lightest weight insulation available
  • Compressible – siliconized fibres slide easily allowing for greater loft, compressibility, and softness
  • Breathable – insulation and fabrics breathe to allow heat-robbing moisture & humidity to escape
  • Extremely quick drying – hydrophobic qualities allow TrueLoft™ to absorb less water and dry quickly
  • Warm when wet – while drying, TrueLoft™ still keeps you warm, performing better than inferior insulations