• External: 19" H × 9" W × 12" D · empty 3.5 lb
• Features: 2 padded headset side pockets · organizers · luggage pass-through · bright interior
• Price range: typically ~$130–$150 (MSRP $139.95) — check live

• Dedicated padded headset pockets at a mid price — useful for training and dual-headset days
• Pass-through for a small roller; bright lining helps in dim cockpits
• Not modular; fixed canvas layout
• More “pilot branded” look than a plain backpack

Choose Bush Pilot when you want simple dual-headset protection in a value duffel. For airline-style modular shells later, see Airline flight bags.

• External: 20" W × 11" H × 12" D · empty 3.65 lb
• Features: Headset pockets on both ends · padded tablet pocket · dividable main · roller attachment · water-repellent 600D
• Price range: typically ~$100–$130 (often near $99.95–$129.95 MSRP) — check live

• Longstanding GA/training bag shape — room for charts, kneeboard gear, and two headsets
• Customizable main compartment; sturdy feet and reinforcing straps
• Strong value vs modular systems
• Bulkier than Lift for tight trainers
• Not modular day-to-day like BrightLine

Choose ASA Pro when you want maximum simple capacity without BrightLine pricing. Prefer Lift when cockpit space is tight.

• External: 14" × 10.5" × 6.5" · empty 4.6 lb
• Features: CS4 center holds 1–2 headsets · Echo/Foxtrot side pockets · strip toward B0 Slim (Slim Handle Kit separate)
• Price range: typically ~$249 (MSRP) — modules add cost — check live

• Manufacturer and GA writeups pitch B4 as an ideal VFR flight bag — customize for lesson vs XC days
• True modularity; headset capacity in a relatively compact footprint
• Higher empty weight and price than Lift / ASA / Bush Pilot
• Zipper ergonomics and module spend are common caveats

Choose B4 SWIFT when you want day-to-day size changes. For a cheaper fixed layout, pick Lift or ASA Pro first.