Cocoon yourself in the Sea To Summit Boab -9°C Synthetic Regular Wide Sleeping Bag - your cosy haven to rest and recover after a long trail adventure. Ideal for car camping, overnight hikes and staying toasty warm on your travels, the Boab synthetic sleeping bag features a tapered, rectangular shape, giving you plenty of wriggle room to toss, turn, and sprawl out naturally.

Packed with eco-friendly Revive Loft insulation with a non-PFAS DWR finish, you can enjoy peace of mind in the outdoors. When the chill rolls in, the built-in draught tube running along the zipper acts as a protective shield, sealing out the cold so you stay toasty warm.

On those milder summer nights, the full-length zipper extends to the footbox, allowing for effortless, customisable ventilation. You can slide it open just at the feet to catch a cool breeze, or unzip it entirely to transform the sleeping bag into a camping blanket. 

Choosing the Boab sleeping bag means investing in your own comfort while protecting the wild places you explore, as Sea to Summit is a proud 1% for the Planet contributor - helping fund vital environmental conservation work. 

“This bag delivers comfort when you camp, space when you sleep, ventilation when it’s warm, and doesn’t break the bank. The Boab is tailored for car campers and newcomers to the outdoors, providing greater comfort compared to traditional narrow-shaped mummy bags.” - Seth, Sea To Summit

Key Features: 

  • Temperature Rating (ISO Lower Limit): -9°C  |  15°F 
  • Women's Temperature Rating (ISO Comfort): -4°C | 25°F
  • Tapered, Rectangular Shape: Ideal for side sleepers and anyone seeking a wider shape than conventional mummy sleeping bags to sleep naturally.  
  • Regular Wide Profile: Ideal for campers that are up to 185cm tall to stretch out comfortably with the additional width. 
  • Revive Loft Insulation: Keeps you cosy using 100% RCS-certified (Recycled Claim Standard) polyester that gives a new life to post-consumer waste as your favourite sleeping bag. 
  • Designed To Insulate: Even in wet conditions, Revive Loft effectively captures insulating air in the hollow-core fibres to maintain warmth, while remaining ultra-soft and durable. 
  • Full-length Zip Versatility: Delivers customisable ventilation thanks to the main zip with two sliders - unzip the bottom to air out your feet, or open it up flat to use as a camp blanket.
  • Draught Tube: Runs the length of the zipper to stop cold air from sneaking in and stealing your body heat.
  • Snag-free Zipper Functionality: Zip plough on YKK #5 zipper for worry-free entrance and exit. 
  • Includes Compression Sack: For convenient packability.
Both synthetic sleeping bags and natural down sleeping bags have their benefits and disadvantages. Synthetic sleeping bags like the Sea To Summit Boab are more resistant to water absorption, and the forgiving material can be a game-changer in wet conditions. Synthetic sleeping bags tend to be more affordable to new campers, however the trade-off is the additional weight. Alternatively, down sleeping bags deliver a superior warmth-to-weight ratio and can pack down smaller than most synthetic sleeping bags, yet aren't as effective at insulation when wet.
The Sea To Summit Boab sleeping bag is a versatile option for both travelling and camping thanks to the spacious design, customisable ventilation and ability to adapt to warm weather by fully unzipping your sleeping bag to convert into a quilt. Alternatively, the Sea To Summit Hamelin sleeping bag is ideal for backpacking, featuring the Free Flow zip system that allows you to keep your arms free while holding in warmth, and is complete with a more technical hood and footbox.

Brand : Sea To Summit

SKU: S2ST-ASL043121-442008

Model # : ASL043121-442008

Barcode : 9327868161843  (AU)

Gender : Unisex

Product Family : Sea To Summit Boab

Length : Regular Wide

Shape : Tapered Rectangular

Zipper Position : Dual Zipper

Insulation Type : Synthetic

Lower Temperature Limit (degrees Celsius) : -5 to -9

Temperature Rating (ISO Lower Limit) : -9°C

Women's Temp Rating (ISO Comfort) : -4°C

Weight : 2135g | 75.3oz

Compressed Volume : 17.6L

Compression Sack : 26L

Width (At Max Point) : Regular 152cm | Regular Wide 172cm | Long 162cm

Fits Up To Height : Regular 185cm | Regular Wide 185cm | Long 198cm

Material :

  • Outer: 50D Bluesign Approved, Recycled Polyester With Non-PFAS DWR
  • Inner: 50D Bluesign Approved, Recycled Polyester
  • Insulation: Revive Loft 100% RCS-certified, Post-consumer, Recycled, Multi-Denier Synthetic Insulation

Zip Options : YKK #5 Left Sided Two Way Full Zipper With Zip Plough

Free shipping on orders over $140 to Australia*
Shipping on small orders (under $140) only $9.95
Shipping on all orders to NZ only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU) – FREE on orders over $140 and $9.95 on orders under $140. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

Manufacturing defects covered, replaced or repaired if soon after purchase.

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products).
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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