Synthetic Sleeping Bag

Name: Synthetic Sleeping Bag
Brand: Alton
SKU: SSB+5
Price: 349.0 NZD
Availability: InStock

HIGH-PERFORMANCE INSULATION IN VARIABLE CONDITIONS

Built for reliable warmth across a range of temperatures, Alton’s Synthetic Sleeping Bag is filled with premium Primaloft® Gold insulation that’s easy to care for, resistant to compression over time, and excels in high-humidity environments.

Temperature Rating (ISO 23537-1:2022)

5°C | 41°F (Lower Limit) 0°C | 32°F (Lower Limit) -5°C | 23°F (Lower Limit)

Ships in 24 hrs
Easy returns
Lifetime Warranty*

Frequently bought together

Ultralight Pillow

$38.00
Insulated Sleeping Mat (R4)

$187.00 $223.00

ALL ALTON PRODUCTS ARE COVERED BY A LIFETIME WARRANTY.* CLICK HERE TO LEARN MORE.

Explore Product Features

Primaloft® Gold Insulation

One of the highest-performing synthetic insulations on the market, Primaloft® Gold retains much of its warmth when wet and dries faster than untreated down.

Water-Resistant Shell

The 15D ripstop nylon outer shell is treated with a PFAs-free C0 DWR coating to shield against moisture and keep the insulation performing at its best.

ISO-Certified Warmth Ratings

Available in three ISO 23537-1:2022 certified temperature ratings, you can trust this Synthetic Sleeping Bag to deliver the warmth you need when the temperature drops.

Comfortable & Compact

Warmth where you need it, space where you want it. The tapered mummy design reduces unnecessary bulk, while the square footbox offers enhanced comfort in any sleeping position.

Specifications

Dimensions	207cm (Length) × 82cm (Shoulder) × 27cm (Width Foot) × 27cm (Height Foot)
Material (Shell)	Ripstop Nylon with C0 DWR Coating
Material (Fill)	PRIMALOFT® Gold Insulation

Dimensions	81.5in (Length) × 32.5in (Shoulder) × 10.5in (Width Foot) × 10.5in (Height Foot)
Material (Shell)	Ripstop Nylon with C0 DWR Coating
Material (Fill)	PRIMALOFT® Gold Insulation

Packed Weight

5°C	875g
0°C	995g
-5°C	1360g

41°F	1lb 14.9oz
32°F	2lbs 3.1oz
23°F	3lbs

Packed Dimensions

5°C	28 × 18 × 18cm
0°C	29 × 20 × 20cm
-5°C	33 × 22 × 22cm

41°F	11 × 7 × 7in
32°F	11.5 × 8 × 8in
23°F	13 × 8.5 × 8.5in

What's included

1 × Synthetic Sleeping Bag
1 × Ultralight Compression Sack

Premium Materials & Construction

From humid coastal ranges to stormy alpine nights, Primaloft® Gold insulation delivers consistent warmth and performance in a huge range of conditions. Capable of retaining warmth when wet, it dries faster than untreated down, and holds its loft trip after trip. The 15D ripstop nylon shell treated with a C0 DWR coating adds an extra layer of protection against light moisture, so you can rely on your Synthetic Sleeping Bag to perform wherever you take it.

Thoughtful Design, Real Comfort

Alton’s Synthetic Sleeping Bag features a smart, comfort-enhancing design with an adjustable hood, 3D draught collars at the neck and along the zipper line, and a spacious square foot-box. The differentially-cut baffles help prevent cold spots and keep heat where it needs to be. The result is a Synthetic Sleeping bag that’s warm, compact and genuinely comfortable to sleep in.

Responsible Performance

Our Synthetic Sleeping Bag is designed for high performance without trade-offs. Filled with premium Primaloft® Gold that is free from animal products, made from 100% post-consumer recycled content, and is OEKO-TEX® certified, ensuring it meets the strictest environmental and ethical standards at every stage of production. On the outer shell, the PFAS-free C0 DWR treatment efficiently sheds water without the use of toxic forever chemicals, providing optimal moisture resistance in varied conditions.

Proven Warmth For Wilderness Conditions

Our Synthetic Sleeping Bag is available in three temperature ratings — +5°C, 0°C, and −5°C, all of which have been third-party tested and certified by the EN ISO 23537-1:2022 standard. The ratings listed are lower limits; we recommend selecting a bag with a lower limit a few degrees warmer than the coldest conditions you expect to encounter. For more information on the ISO ratings and help choosing the right sleeping bag for your needs, check out this guide.