the backpack for active days or weekends away

meet the multifunctional thule aion 28l backpack! it expands from a day pack to a 32l travel backpack, offering 15% more packable space. plus, it features a handy divider to keep your everyday essentials separate from your active gear.

the bag's back panel completely unzips and opens like a suitcase, making packing a breeze. inside, there's a stowable divider with tpu lining to keep your gear organized and prevent moisture, odor, or dirt from transferring to the rest of your belongings. it also includes dedicated compartments for your electronics and a water bottle pocket. don't forget, the thule aion sling (sold separately) can be attached to this backpack as a hip belt for carrying extra weight and quick access to your essentials.

bluesign® certified and made from durable recycled materials

the shell fabric, lining, and mesh are crafted from 100% recycled materials. this rugged waxed canvas fabric gains more character as it ages and boasts a water-resistant finish that is free from toxic pfcs. all thule aion products hold bluesign® certification, ensuring the safety of workers, consumers, and the environment.

tested to the limit

at the thule test center™ in hillerstorp, sweden, our products undergo rigorous testing. our roof rack systems are designed to carry your gear safely and fit securely on your car. here are a few examples of the many tests we conduct.

quality that lasts

every thule bag is put through extensive testing to ensure durability. our luggage goes through 50 rigorous tests before earning its thule logo.

bluesign® system members

we are partners in the bluesign® system, an international standard aimed at minimizing the environmental impact of textile manufacturing on people and the planet.

responsible sourcing and logistics

we adhere to the principles of the un global compact and the guidelines set by ilo and oecd, conducting thorough audits to ensure our suppliers uphold human rights, labor laws, safety, and environmental regulations. all features

• expands from a 28l daypack to a 32l travel backpack for 15% more packable space
• the easy-to-clean tpu divider keeps items organized and prevents odor, moisture, and dirt from spreading to the rest of the bag, and it tucks away when not in use
• zippered top pocket keeps small items secure, organized, and within reach
• compatible with the thule aion sling bag, which doubles as a supportive hip belt (sold separately)
• quick-access external stash pocket helps store small items
• padded storage protects a 39.6 cm pc/40.6 cm macbook and 32.8 cm tablet
• pass-through panel allows you to secure the backpack to rolling luggage
• dedicated water bottle pocket keeps your bottle secure and within reach
• internal zippered pocket stores a phone, charger, and other small items during travel
• external daisy chain allows you to attach items to the bag
• outer shell fabric, lining, and mesh are made of 100% recycled polyester from recycled plastic bottles
• the 600d waxed canvas shell fabric is highly durable, featuring a water-resistant coating free of toxic pfcs that repels moisture, dirt, and stains
• all thule aion products are bluesign® certified

technical specifications

color

black

gender

unisex

material

waxed p600 polyester canvas

volume

28 l

dimensions (lxwxh)

28 x 23 x 47 cm

weight

1.23 kg

model number

3204721

aion, travel, backpack, thu-3204721, hiking, bags, backpacks