Aer Duffel Pack 2 vs United By Blue 9L Sidekick Pack

  • Great for travel
  • Lightweight and durable
  • Easy to carry with one hand
  • Durable straps for carrying heavy items
  • Comfortable and breathable
  • Great for a day bag
  • Separate iPad sleeve
  • Bottle holders that don't let the bottles fall out
  • Attractive
  • Very small size