Thule Subterra 2 Backpack 21L

Organized storage for work and travel

The Thule Subterra 2 Backpack 21L combines a compact daypack shape with dedicated space for a laptop, tablet and everyday essentials. Its separate pockets help you keep chargers, small accessories and travel documents easy to find.

Thoughtful protection and organization

• Padded, soft-lined sleeve accommodates a 16-inch PC or MacBook; a separate padded sleeve protects a 10.9-inch tablet.
• Interior organizer and a dedicated power-brick pocket keep cables and small essentials together.
• Soft-lined storage protects fragile items such as sunglasses.
• Back-panel security pocket keeps a wallet or passport close to you.
• Two large side pockets hold a water bottle, umbrella or both.
• Main-compartment zipper pulls tuck beneath webbing loops to make unwanted access harder.

Comfort between destinations

A ventilated, padded air-mesh back panel and stabilizing sternum strap support everyday carrying. The luggage pass-through slips over a rolling suitcase handle for airport connections.

Specifications

• Capacity: 21L.
• Dimensions (L × W × H): 12.6 × 7.9 × 18.1 inches.
• Laptop compartment: 9.9 × 0.8 × 14.8 inches.
• Weight: 1.9 lb.
• Material: bluesign-approved 800D nylon/polyester, with YKK zippers.
• Manufacturer model: TSLB415.
• Color: Black (3205024).

Which Subterra size is this?

This is the 21L Subterra 2 backpack. The 27L version is a separate, larger model. Choose this bag when you prefer a compact everyday load and organized electronics storage.

Will my laptop fit?

Thule lists compatibility with a 16-inch PC or MacBook. Compare your computer’s dimensions with the sleeve measurements, particularly if you use a protective case.

Can I use it on flights?

Compare the listed dimensions with your airline’s current cabin-baggage rules. Airline and aircraft limits vary, so fit is not guaranteed.

Explore the Thule Subterra 2 collection and compare travel backpacks.