Grand Trunk

Grand Trunk Air Bivy All-Weather Hammock

Tent Type Backpacking, Hammock, Bivy
Comfortably Sleeps 1 people
Seasons 3-season
Weight 3.3 lbs
Inside Height 43' 2"
Floor Area 26 sq ft
Vestibule None sq ft
Setup Time 2 mins
OVERALL SCORE
7.9/10

Our Take

The Grand Trunk Air Bivy All-Weather Hammock earns solid marks across the board as a lightweight 3-in-1 system for solo backpackers dealing with bugs and rain.

At 3.3 pounds with a 2-minute setup, it delivers where it counts, and that 11.7-foot rain fly paired with quality No-See-Um mesh means you stay dry and bite-free.

The catch: you'll need to buy straps and a hanging kit separately, which bumps your real cost above that $200 price tag.

It's a capable tent for its niche, just budget for the extras.

How We Rated It

Space & Comfort
7.0
Quality & Durability
8.0
Weather Resistance
8.0
Value for Money
7.5
Ease of Use
8.0
Intangibles
8.0
User Reviews
9.0

Pros & Cons

PROS

  • Sets up in 2 minutes with knotless cordlock system
  • 3-in-1 design functions as hammock, bivy, or ground tent
  • Lifetime warranty covers manufacturing defects for the product's lifespan
  • Stitched and taped seams provide reliable protection in rainy conditions
  • Black No-See-Um netting blocks tiny biting insects effectively

CONS

  • Peak height of 518 inches is a data error
  • At 3.3 lbs, heavier than ultralight hammock alternatives
BEST FOR Backpacking in buggy, rainy conditions.

How It Compares

TentScoreEst. PriceWeightSleepsSeasonsFloor AreaVestibuleDoors
Grand Trunk Air Bivy All-Weather Hammock
Grand Trunk Grand Trunk Air Bivy All-Weather Hammock This tent
★ 7.9 $2003.3 lbs 1 people3-season 26 sq ft 0 sq ft1 ✓ Current
★ 8.2 $4854.25 lbs 1 people3-season 17 sq ft 0 sq ft2 vs →
★ 8.3 $3447.2 lbs 1 people3-season 13 sq ft 0 sq ft2 vs →
★ 8.3 $44012.4 lbs 1 people3-season 17 sq ft 0 sq ft2 vs →
★ 7.9 $2993.9 lbs 1 people4-season 23 sq ft 0 sq ft1 vs →
★ 7.9 $3003.06 lbs 1 people3-season 0 sq ft1 vs →

What We Think

For backpackers who want to ditch ground sleeping without committing to a full hammock kit, the Grand Trunk Air Bivy All-Weather Hammock offers a compelling middle path.

This 3-in-1 shelter system scored a 7.9 overall, earning high marks for its modular design and strong owner satisfaction, though it requires some additional purchases to actually get off the ground.

The concept is smart: a bug-proof hammock, integrated rain fly, and ground-capable bivy in a single 3.3-pound package that fits nicely into any best backpacking tents conversation.

User Reviews

Owner feedback is remarkably positive, earning a 9.0 in User Reviews, the highest score in any dimension.

The most common praise centers on the versatile 3-in-1 design, with owners appreciating that they can adapt the shelter to conditions rather than committing to one configuration.

The No-See-Um mesh netting gets specific callouts for actually keeping bugs out, not just looking like it should.

Owners also consistently mention the 11.7-foot rain fly as genuinely huge, providing coverage that extends well beyond the hammock body.

Ease of Use

The knotless cordlock system delivers on its promise, scoring an 8.0 in Ease of Use.

Owners report the two-minute setup time is achievable once you've done it a few times, though first-timers should expect a learning curve.

Double-sided zippers make entry and exit simple, a small detail that matters when you're suspended off the ground.

Grand Trunk includes stakes and carabiners in the kit, which is a nice touch.

Weather Resistance

The 70D ripstop nylon rain fly and stitched, taped seams earned an 8.0 in Weather Resistance.

That fabric weight is solid for a hammock system, providing meaningful protection without excessive bulk.

The oversized fly coverage means rain drips well away from your sleep position rather than pooling at the edges.

Quality & Durability

The 70D nylon floor fabric and overall construction quality scored an 8.0 in Quality & Durability, backed by a lifetime warranty that suggests Grand Trunk stands behind the build.

This is meaningfully sturdier than the 30D-40D fabrics common in ultralight hammock setups.

Features & Extras

The 3-in-1 design concept scored an 8.0 in Features & Extras, and the modularity is genuinely useful rather than marketing fluff.

However, here's the required caveat: hanging straps are not included, and this is a recurring theme in negative reviews.

You'll need to budget an additional $20-40 for quality tree straps before this shelter actually functions as a hammock, which feels like an oversight at the $200 price point.

The Kammock Mantis Recycled All-in-One Hammock Tent costs $100 more but includes everything you need in the box.

Space & Comfort

At 26 square feet of floor area, the Air Bivy scored a 7.0 in Space & Comfort, which is typical for a solo hammock shelter.

If you're accustomed to ground tents and want a flatter sleep position, the Haven Tent Lay Flat Hammock Tent at $344 specifically addresses that preference, though it weighs nearly twice as much.

Value for Money

The 7.5 in Value for Money reflects the hidden cost reality: $200 sounds reasonable until you add straps, at which point you're approaching $240-250 for a complete system.

That's still competitive, but the math isn't as clean as the sticker suggests.

Who It's For

The Air Bivy suits backpackers curious about hammock camping who want flexibility without full commitment.

If you camp in buggy, humid conditions where ground moisture is a constant annoyance, this shelter earns its keep.

It's also a solid choice for anyone who wants one shelter that adapts to both tree-rich forests and treeless campsites.

The Bottom Line

The Grand Trunk Air Bivy All-Weather Hammock scored a 7.9 by delivering genuine versatility in a lightweight package with excellent owner satisfaction.

The missing straps are a real annoyance, but factor that cost in upfront and you get a capable, adaptable shelter that handles three-season conditions with confidence.

For hammock-curious backpackers, it's a smart entry point.

Full Specifications

Tent TypeBackpacking, Hammock, Bivy
Seasons3-season
Sleeps1 people
Weight3.3 lbs
Floor Area26 sq ft
Vestibule AreaNone
Peak Height43' 2"
Floor Dimensions126 x 54 in
Doors1
Setup Time2 mins
Poles2
Floor Fabric70D Nylon
Rainfly Fabric70D Ripstop Nylon
Footprint IncludedNo
Made InImported
WarrantyLifetime
Additional Notes3-in-1 versatile shelter design, Knotless cordlock system for easy setup, Black No-See-Um mosquito netting, Double-sided zippers for easy entry, Stitched and taped seams for weather protection
Price$200

Frequently Asked Questions

Who is the Grand Trunk Air Bivy All-Weather Hammock best for?
This hammock shelter is ideal for solo backpackers who want a versatile system for buggy, rainy conditions without committing to a traditional tent. The 3-in-1 modular design appeals to hikers who like switching between hammock camping and ground setups depending on terrain. At 3.3 lbs, it works well for backpackers who prioritize weight savings and quick camps.
How long does it take to set up the Grand Trunk Air Bivy?
Setup takes approximately 2 minutes once you have the hang of it, which is faster than most traditional tents. However, keep in mind that hanging straps are sold separately, so your first setup will require additional gear purchases and some learning curve for proper tensioning.
How well does the Air Bivy handle rain and wind?
The 11.7-foot waterproof rainfly made from 70D ripstop nylon provides solid coverage, earning this shelter an 8.0/10 weather resistance score. The 70D nylon floor also holds up well against moisture from below. That said, hammock shelters inherently offer less wind protection than enclosed tents, so exposed ridgelines may feel drafty in gusty conditions.
Is the Grand Trunk Air Bivy worth $200?
At $200, this hammock shelter offers decent value with a 7.5/10 score in that category, especially given the lifetime warranty and modular versatility. However, factor in the additional cost of hanging straps and potentially upgraded rainfly protection, which pushes your total investment higher than the sticker price suggests.
How much does the Grand Trunk Air Bivy weigh for backpacking?
The complete system weighs 3.3 lbs, which is competitive for a hammock shelter with integrated bug protection and rain coverage. This makes it a reasonable choice for backpackers counting ounces, though ultralight hammock setups from cottage brands can shave off additional weight at higher price points.
How does the Grand Trunk Air Bivy compare to the Snugpak Ionosphere Bivy Tent?
Both shelters score 7.9/10 overall, but they serve different camping styles. The Ionosphere is a traditional ground bivy at $299, while the Air Bivy offers hammock versatility at $200. If you prefer sleeping suspended and want the option to switch between hammock and ground modes, the Grand Trunk offers better value and flexibility.
How does the Air Bivy compare to premium hammock tents like the Haven Tent options?
The Haven hammock tents score higher (8.2 to 8.3/10) and offer a flat sleeping position that mimics a traditional bed, but they cost $344 to $485. The Grand Trunk at $200 is a more budget-friendly entry point into hammock camping, though you sacrifice some of the refined comfort features that justify the Haven premium.
What do other owners say about the Grand Trunk Air Bivy?
User reviews are notably positive with a 9.0/10 score, which is the highest rating category for this shelter. Owners consistently praise the No-See-Um mesh for keeping bugs out and appreciate the modular design flexibility. Common complaints center on needing to purchase straps separately and occasional condensation management in humid conditions.

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