Deuter Futura Air Trek 45+10 SL vs Deuter Futura Air Trek 50+10
Quick take: The Deuter Futura Air Trek 50+10 carries more (60 vs 55 liters); the Deuter Futura Air Trek 45+10 SL is lighter (4.41 vs 4.52 lbs).
Which one to buy
The women's and unisex Futura Air Treks share a price of $255, the same 18-33 lb rating, the same suspended Aircomfort mesh, a rain cover, hipbelt pockets and continuous VariSlide adjustment. What changes is the back length and 5 L. The 45+10 SL adjusts across 35-56 cm with a genuine women's construction rather than a shortened unisex pack; the 50+10 adjusts across 42-62 cm. Below 42 cm only the SL fits, above 56 cm only the 50+10 does, and in between, harness shape should decide.
The two share the same trade-offs. The mesh bows the pack entirely off your back, the fix for a soaked shirt, but it pushes the load's center away from your spine, so heavy weights feel leveraged. Keep either under 30 lbs. The gap behind the mesh also eats depth, so packed volume feels tighter than the badge, though on the SL a front zip helps you use what's there. Neither lid comes off.
If you fit both and want more room, the 50+10 is the larger bag for the same money, and each has a bigger sibling at $275. Neither is the pack for winter loads past 30 lbs; for a hot-weather trek where a soaked shirt is the complaint, whichever one fits is Deuter's best answer.
Deuter Futura Air Trek 45+10 SL
For women and shorter torsos from 35 cm who want Deuter's best-ventilated trekking pack built on a women's harness.
Deuter Futura Air Trek 50+10
If your back length runs to 56 cm or beyond, or the unisex harness simply fits, this gives 5 L more at the same price.
| Spec | Deuter Futura Air Trek 45+10 SL | Deuter Futura Air Trek 50+10 |
|---|---|---|
| Price | $255 | $255 |
| Rating | — | — |
| Type | Traditional Pack | Traditional Pack |
| Frame Type | Internal Frame | Internal Frame |
| Capacity | 45+10 L | 50+10 L |
| Weight | 4.41 lbs | 4.52 lbs |
| Max Load | 18-33 lbs (8-15 kg) | 18-33 lbs (8-15 kg) |
| Torso Fit | VariSlide, 35-56 cm (13.8-22 in) | VariSlide, 42-62 cm (16.5-24.4 in) |
| Material | 210D recycled PA with 600D PES | 210D recycled polyamide with 600D polyester |
| Back Panel | Aircomfort suspended mesh over spring steel frame | Aircomfort suspended mesh over a round-profile spring steel frame |
| Adjustable torso | Yes | Yes |
| Ventilated back | Yes | Yes |
| Raincover included | Yes | Yes |
| Hipbelt pockets | Yes | Yes |
| Removable lid | No | No |
| Hydration sleeve | Yes | Yes |
| Fits BV500 bear can | No | No |
| Warranty | Deuter lifetime repair policy | Deuter lifetime warranty |
Pros & cons
Deuter Futura Air Trek 45+10 SL
- ✓The suspended Aircomfort mesh is the most ventilated back panel Deuter makes and the direct answer to sweaty-back complaints about the Aircontact line.
- ✓VariSlide gives infinite adjustment across 35-56 cm rather than fixed stops, so the fit can be dialled precisely.
- ✓A rain cover is included at $255, which the pricier Aircontact Core does not offer.
- ✓Front zip access avoids digging through a top-loader on a pack of this depth.
- ✓The 210D recycled face fabric keeps it to 2,000 g despite the frame and suspension hardware.
- ✓The SL fit is a genuine women's construction rather than a shortened unisex pack.
- ✓A 55+10 at $275 extends the same suspension to longer trips.
- ✓Lifetime repair policy applies as across the range.
- ✗8-15 kg is the lowest load rating of any Deuter trekking pack, so it is the wrong choice for heavy carries.
- ✗A suspended mesh panel forces the load centre away from the back, which makes heavy loads feel more leveraged than the Aircontact design does.
- ✗At 2,000 g it is heavier than the Aircontact Lite while topping out at the same 15 kg load.
- ✗The gap behind the mesh consumes depth, so packed volume feels tighter than the badge implies.
Deuter Futura Air Trek 50+10
- ✓Full suspended mesh back at 50+10 L, which Deuter otherwise reserves for daypacks.
- ✓VariSlide gives continuous adjustment over 20 cm of back length rather than fixed stops.
- ✓Two zippered hipbelt pockets, a 3 L hydration sleeve and an integrated rain cover.
- ✓2,050 g is lighter than the Aircontact Core 50+10 at 2,310 g.
- ✓$255 is $25 under the Aircontact Core at the same volume.
- ✓Available in 50+10 and 60+10 L with one harness design.
- ✗The 8-15 kg rating is well below the Aircontact Core's 10-20 kg, so this is not the pack for heavy expedition loads.
- ✗The suspended mesh curves the back panel, which costs usable volume inside the 50 L body.
- ✗Over two kilograms for a pack rated to 15 kg is a poor weight-to-load ratio against the Aircontact Ultra 50+5 at 1,270 g.
- ✗The lid is height-adjustable but not removable.
- ✗210D recycled polyamide on the main body is lighter-duty than the 600D used on the base.
Deuter Futura Air Trek 45+10 SL vs Deuter Futura Air Trek 50+10: common questions
Can either Futura Air Trek handle a heavy winter load?▾
No. Both are rated to 18-33 lbs, the lowest of Deuter's trekking packs. Keep either under 30 lbs, because the suspended mesh holds the load away from your spine and heavy weights feel leveraged.
Which fits a back length of 42-56 cm?▾
Both do. The SL uses women's-specific geometry and the 50+10 a unisex harness, so try both and pick by how the straps and hipbelt sit.
Does the mesh back cost packing space?▾
Yes, on both, since they share the suspended mesh. The gap behind it makes usable volume feel tighter than the badge implies, and on the SL a front zip helps you reach what you've packed.