Deuter Futura Air Trek 45+10 SL vs Deuter Futura Pro 40
Quick take: The Deuter Futura Pro 40 costs $15 less; the Deuter Futura Air Trek 45+10 SL carries more (55 vs 40 liters); the Deuter Futura Pro 40 is lighter (3.57 vs 4.41 lbs).
Which one to buy
If you have settled on Deuter's suspended Aircomfort mesh, the question is how far you are going. The Futura Pro 40 is the bridge between Deuter's daypacks and its trekking packs: 40 L, rated to 13-22 lbs, 3.57 lbs, $240. It swallows a light summer overnight or hut-tour kit. The Futura Air Trek 45+10 SL is the trekking pack: 55 L with the lid raised, rated to 18-33 lbs, 4.41 lbs, $255.
Fit adds a second filter. The Air Trek SL is a women's construction adjusting continuously across 35-56 cm. The Pro 40 is unisex across 42-62 cm, with VariClick's five stops that can't drift under load and straps anchored directly to the frame. A woman under 42 cm has only the SL here; the women's equivalent of the Pro 40 is the Pro 34 SL.
The suspended mesh has the same weakness on both: overload it and the pack gets leveraged and unstable. Keep the Air Trek under 30 lbs. The Pro 40's 40 L holds well past its 10 kg ceiling, and the Aircontact Lite carries better if you're regularly over it. Both include rain covers. The Air Trek SL has hipbelt pockets and front-zip access; the Pro 40 lacks hipbelt pockets, which aftermarket belt pouches can fix, but has a separate bottom compartment and lid section. The Pro 40 also weighs more than some 50 L trekking packs, the price of the ventilation and organization.
Count the nights: one, and the Pro 40 is enough pack and nearly a pound lighter; three or more in heat, and only the Air Trek SL is sized and rated for the food.
Deuter Futura Air Trek 45+10 SL
For women trekking several days in warm weather, with loads up to about 30 lbs, who want hipbelt pockets and a women's harness.
Deuter Futura Pro 40
Right for long day hikes, hut tours and light overnights, especially for torsos past 56 cm that the SL can't reach.
| Spec | Deuter Futura Air Trek 45+10 SL | Deuter Futura Pro 40 |
|---|---|---|
| Price | $255 | $240 |
| Rating | — | — |
| Type | Traditional Pack | Daypack |
| Frame Type | Internal Frame | Internal Frame |
| Capacity | 45+10 L | 40 L |
| Weight | 4.41 lbs | 3.57 lbs |
| Max Load | 18-33 lbs (8-15 kg) | 13-22 lbs (6-10 kg) |
| Torso Fit | VariSlide, 35-56 cm (13.8-22 in) | VariClick 5-stage, 42-62 cm (16.5-24.5 in) |
| Material | 210D recycled PA with 600D PES | 210D recycled PA X-Grid |
| Back Panel | Aircomfort suspended mesh over spring steel frame | Aircomfort suspended mesh over flexi spring steel frame |
| Adjustable torso | Yes | Yes |
| Ventilated back | Yes | Yes |
| Raincover included | Yes | Yes |
| Hipbelt pockets | Yes | No |
| Removable lid | No | No |
| Hydration sleeve | Yes | Yes |
| Fits BV500 bear can | No | No |
| Warranty | Deuter lifetime repair policy | Deuter lifetime repair policy |
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 Pro 40
- ✓40 L with a suspended mesh back is a rare combination: most packs this size use a contact back panel.
- ✓VariClick gives five positive stops across 42-62 cm, so the fit is repeatable rather than drifting under load.
- ✓Shoulder straps anchor directly to the frame, which transfers load better than strap-to-fabric attachment.
- ✓Separate bottom compartment and lid section give real organisation at a volume where many packs are a single tube.
- ✓Rain cover included, consistent with the rest of the Futura line.
- ✓6-10 kg load rating is double the standard Futura's, making it a genuine overnight option.
- ✓210D recycled X-Grid is the more tear-resistant fabric in Deuter's day range.
- ✓Lifetime repair policy.
- ✗1,620 g is heavier than several full 50 L trekking packs, including Deuter's own Aircontact Ultra at 1,270 g for 55 L.
- ✗6-10 kg is well short of what 40 L can physically hold, so the pack can be overloaded past its suspension.
- ✗The suspension gap costs usable depth, more noticeably at this volume.
- ✗$240 is close to Aircontact Lite trekking pack money for less capacity.
- ✗The rigid frame and curved back make it bulky in transit.
Deuter Futura Air Trek 45+10 SL vs Deuter Futura Pro 40: common questions
Can the Futura Pro 40 do a multi-day trip instead of the Air Trek?▾
Only a light one. It handles a summer overnight or hut tour, but its 13-22 lb rating sits below the Air Trek SL's 18-33 lbs, and the suspended mesh gets unstable when overloaded.
Where do snacks go on the Futura Pro 40?▾
Not on the belt: the Pro 40 has no hipbelt pockets, so budget for aftermarket pouches. The Air Trek 45+10 SL has them built in, as does the women's Pro 34 SL.
How hot do these run compared with each other?▾
They use the same suspended Aircomfort mesh, the most ventilated panel Deuter makes. Ventilation will not separate them; capacity, load rating and fit will.