Expandable Carry-On Travel Backpack (40L) – Hynes Eagle – Gray

A: Hi Rene! Great question! 😊 Yes, the Hynes Eagle Evolution 40L Carry-On Backpack is designed with airline travel in mind and works well for flying with Southwest Airlines. Here’s how the sizing compares: Southwest carry-on size limit (overhead bin): 24" x 16" x 10" Southwest personal item limit (under the seat): 18.5" x 13.5" x 8.5" Hynes Eagle Evolution 40L Backpack: 20" x 13" x 8" The backpack fits within Southwest’s overhead carry-on size allowance. It is slightly taller than Southwest’s personal item height limit (20" vs. 18.5"), so it may not always qualify as a personal item if measured strictly. Many travelers use it as their standard carry-on and place it in the overhead bin without issue. For best results, avoid overpacking and keep it within its structured dimensions. As always, airline policies can change, so we recommend confirming with Southwest before your trip. Happy travels!