Choosing a pack size

Volume by trip

• Day hikes and travel: 20–38 L (the Switchback 38L fits most airline carry-on limits when not overstuffed).
• 1–3 nights: 38–55 L.
• 4+ nights or winter: 55 L and up.

Torso length

Measure from the bony bump at the base of your neck down to the line between the tops of your hip bones. Switchback packs adjust from 16 to 21 inches.