Beyond the age of 15, men have something of a crisis in the bag department. No, that's not a euphemism.
The humble packpack that serves us well through our school years is usually tainted by these formative years, forever making office workers and commuter with a double strapped rucksack appear something like an overgrown child.
But you don't have to ditch the comfort of a bag for a single strap, spine ruining satchel. There are stylish backpacks out there, and you don't have to throw money at them to ensure a good look.
We've delved through the cavernous stores of the internet to bring you the best backpacks for a decent budget.
Fjallraven Kanken Backpack
The Arctic Fox (Fjallraven in Swedish, but you knew that) has been making a name for itself with its hard-wearing outdoor wear since the 1960s, but their luggage has become increasingly popular in recent years. From the grab handles on the top of the bag to the robust construction, the Kanken Backpack is deeply practical.
BLACK LEATHER TOP BACKPACK by Topman
An aged-looking roll top backpack design from Topman. With a working buckle (as opposed to the usual magnetic fake) and genuine leather construction, this is a bargain for under £70.
Retreat in the "weekend break" sense rather than a flag-waving surrender, Herschel's army-toned rucksack sports a handy headphone port and a slot for a 15-inch laptop sleeve. It probably won't last long on the field of battle, but it'll do you proud on your route to work.
Mi-Pac (to be said with a comic Scottish accent) are specialists in affordable luggage with an edge of maturity not seen in the school playground. This Bandana Backpack is a practical, stylish number that stands out from the usual budget options.
Height: 30 cm
Eastpak Fluster Merge
Designed in the vein of a hiking bag, Eastpak's Fluster Merge looks to keep the weight of your load spread over your back and shoulders thanks inclusion of a sternum strap. A forest of pockets and a laptop sleeve, this is a backpack for the office commuter.
ASOS Clip Backpack
Fearful of quick fingers working their way into your bag in a crowd? With its draw string and clip fastenings, the Clip Backpack from Asos will present a sterner challenge than the average zip. Two side pockets, a main sack section and clean design. No nonsense.
Farah Vintage Melton Backpack
"Wool blend" is usually retail code for "inhibitively expensive" - but not in the case of Farah. Their Vintage Melton backpack manages to smuggle a luxurious 60 percent wool blend, gun metal trimmings and padded laptop pouch in under £60.
This is one of the "simpler" designs from luggage trend setters Herschel. The Nelson has two sections: a cavernous main compartment to lose your stuff in and a fleece-lined slip pocket to cradle your fragile gadgets.
Retro-style backpack by Zara
We're not sure what's retro about Zara's leather-look backpack, but whatever era it's drawing on it's doing it rather well. Magnetic buckles and a main compartment drawstring keeps things nice and minimal, while metal eyelets and buckles suggest a pricey investment. You don't have to tell anyone it was under £30.
Canvas Rucksack by Fred Perry
Part barrel bag, part rucksack, Fred Perry's canvas offering is billed as a hardy backpack. A duffel fastening opens to reveal an internal zipped pocket, while an outer zipped compartment adds yet more places to lose your keys.
Rains MSN Backpack
Sleek, spacious and painfully simple, this fully waterproof offering from Danish label Rains will keep anything you stash in its considerable single compartment safe from the British weather.
Tan leather backpack by Topman
Another leather offering from Topman, this tanned rucksack offers three outer compartments in addition to its roomy inner section. A conventional shape, done particularly well.
HYMN Malkovich Backpack
With a canvas construction and leather strapping, HYMN's Malkovich design is a hard-wearing backpack with practical features. Extra padded shoulder straps, compartments for your phone, tablet and laptop, best not make a point of telling people just how much tech you're carting around in this.
Not stated (but it can fit a laptop)
Laptop? No problem. Football boots? Easy. Skateboard? You bet. The RPM (nothing to do with revolutions) is Nike's everyman - capable of squeezing anything and everything into its numerous pockets.
One for the laptop-lugger, Eastpack's Rowlo is designed with a 15-inch laptop in mind. An inner compartment with room enough for bulky bits and neat leather details make this a decent blend of style and substance.
Nylon Twill Roll Top Bag by Kin
A bag with a literal twist. Access to the main compartment of Kin's canvas bag is gained by unclipping and unrolling the top of this rucksack - a design that allows you to fit awkwardly shaped items and bulky belongings.
Canvas Hiking bag by Keedox
An unconventional clasp seals this army-themed duffel bag. Passing a peg through four eyelets in the bag's opening, the top is fastened with a carabiner clip. A rugged canvas design and side handle makes this one of the more unique bags in our roundup.
Black Tweed backpack by River Island
Why have canvas when you can have tweed? Someone probably has a good answer, but that hasn't stopped River Island from making a good-looking bag out of this hardy material. A leather draw string and magnetic buckles close up a single compartment.
Depth: Not stated
Minimalist backpack by Zara
Clean lines, high-fashion aspirations, Zara has even given its minimalist backpack a minimalist name. Built with no-nonsense cotton and polyurethane, there's an aggressive urban edge to this manbag.
Patagonia Arbor Pack
Treated with a waterproof finish and an array of additional clip bindings (the leather square bits), Patagonia's Abor pack should even stand up to a trip to Patagonia. Given its padded laptop case and padded straps, it'll also get you to the library and back in one piece.
Not provided (but it holds 26 litres)