The Thule Aion 40L Travel Backpack features a removable rolltop bag and has the maximum capacity still classified as carry-on compliant, making it the perfect backpack for air travel.

Features

• Removable TPU rolltop bag tucks away after use and allows you to store items without odor, dirt or moisture spreading to the rest the bag 
• Compatible with the Thule Aion Sling Bag which doubles up as a supportive hip belt (sold separately) 
• Zippered top pocket keeps small items secure, organized and within reach 
• Padded storage protects a 15.6" PC/16" MacBook and 12.9" tablet 
• Dedicated water bottle pocket keeps your bottle secure and within reach 
• Internal zippered pocket stores a phone, charger and other small items during travel 
• Internal compression straps keep items secure during travel 
• Exterior zipper sliders can be locked together for added security 
• Compliant with most airlines carry on requirements 
• 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 and includes a water-resistant coating free of toxic PFCs that repels moisture, dirt, and stains 
• All Thule Aion products are bluesign® certified