This 38+10L frameless backpack weighs 540g and is made from HDPE Gridstop material.
It has similar features to ultralight packs that cost more than twice as much (even more if including shipping costs).
e.g:
The pack is available in two back lengths and three colour options (gray, blue, orange).
A 26L 400g version is also available in the smaller back length only.
Specifications:
- ~38L volume in top-loading main compartment
- ~10L combined volume in the pockets:
- Large mesh front pocket + drawcord webbing
- Mesh side pockets with UHMWPE base and drawcord cinch
- Small pockets on the hipbelt - velcro closure
- 10kg max load
- UHMWPE pack body
- 30cm 30D Cordura extension collar at top
- 3D mesh foam for padded areas (shoulder straps, back, lumbar support and belt)
- Medium size:
- 50cm back length (for under
175cm height)
- 55cm normally packed height
- 530g
- Large size:
- 55cm back length (for 175cm+ height)
- 60cm normally packed height
- 540g
Features:
- Drawcord top closure + buckling strap that goes over the top
- Padded belt with strong buckle and 2 pockets
- Padded back spacer
- Removable padded lumbar support
- Adjustable height sternum strap with buckle
- 2 adjustable compression straps each side
- Adjustable cord loops for 2 trekking poles
- 4 loops at the back to attach a EVA pad as an external frame (3m cord included)
- 2 elastic straps to secure an EVA pad as an internal frame
- Internal hanging points for 3F "simple life" bags. e.g. this one pictured
- Water bladder hose hole
- Lifting loop
Pros
- OK sewing
- HDPE material is waterproof from a PU coating on the inside
- Included EVA mat could be a good sitpad
- Lighten further by trimming excess straps, or detatch the lumbar cushion
- Small enough to be taken as carry-on baggage on an airplane?
- Lumbar cushion could be used as a pillow?
Cons
- No load lifters on the shoulder straps
- Shoulder straps are a bit close together
- Roll top fabric could be more robust
- Larger back size still may not fit very tall people
- Larger belt size is only 98cm - may not be enough for some
- Top does not roll down to keep rain out and minimize space for different loads
- No "pack lid" over the top
- Waterproof from the PU coating, which will wear off over time
- HDPE material at the base of the pack will wear with usage
- Front mesh used is not elastic and needs to be tightened down
- Mesh side pockets might catch on scrub
- Hipbelt pockets on the would be better if they used a zipper
- Included EVA mat is not big enough to sleep on
- No black colour available
- Frameless backpacks need more care when packing to avoid discomfort
- Top strap buckle is a bit flimsy?
Packing list:
- Backpack
- Egg slot Mattress (random colour, size depends on length?)
- 3m elastic rope (to attach pad externally) - uncut
- 5 x "spring buckles"
NB: The 26+10L, 400g version ('Instructor') has the following differences:
- Costs ~$13 USD less
- 50cm back length only (for under
175cm height)
- No mesh back padding
- No lumbar foam support
- 1" unpadded belt without pockets + a less strong buckle
- 8kg max loading capacity
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| Three colours |
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| M, L sizes |
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| Weight (L) |
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| Trekking pole mounts, mesh side pocket, padded hipbelt |
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| Back padding, detachable lumbar support |
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| Padded hipbelt and lumbar support |
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| Hanging point for 3F "simple life" bags |
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| Internal straps for EVA mat (included) |
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| Use a folding EVA mat as external frame |
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| Use a folding EVA mat as internal frame |
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| Use a rolling EVA mat as internal frame |
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Further Resources
Randonner-leger forum:
[Backpack] 3f ul gear tutor backpack (google translated)
Youtube
3F UL GEAR New Lightweight Frameless Backpack - It's called TUTOR
3F UL GEAR Tutor Outdoor Camping travel backpack hiking rucksack 26L/38L
3F UL TUTOR 38L disappointment vs TRAJECTORY 35L (criticism such as disliking frameless bags however)
Reddit
26L version mini-review
3F UL Tutor 38L First Look
Misc
Reddit
Packing frameless bags for maximum comfort
Ripstopbytheroll
210D HDPE Gridstop
