Think Tank travel backpacks
We track 18 Think Tank travel backpacks. 8 fit the cabin-bag limit of at least 90% of the airlines we track. The lightest is the Retrospective EDC Backpack at 1kg2.2lb. Warranty: lifetime. Covers defects in materials and workmanship, not normal wear, accidents or cosmetic issues. Warranty checked September 2026.
| Bag | Volume | Weight | Dimensions | Carry-on fit | Price |
|---|---|---|---|---|---|
| Think Tank Venturing Observer 20L | 20L | 1.1kg2.4lb | 47.5×29×13cm18.5×11.5×5in | 100% | $130.73 |
| Think Tank DarkLight 14L | 14L | 1.22kg2.7lb | 47.5×24.5×19cm18.5×9.5×7.5in | 100% | $169.75 |
| Think Tank Walker Pro 16L | 16L | 1.43kg3.2lb | 45×29.8×19.7cm17.5×11.5×8in | 100% | $229.75 |
| Think Tank FocusPoint Rolltop 22L | 23L | 1.62kg3.6lb | 41.9×28.6×15.2cm16.5×11.5×6in | 100% | $235.75 |
| Think Tank Shape Shifter 25L | 25L | 1.72kg3.8lb | 43×30×17.9cm17×12×7in | 100% | $299.75 |
| Think Tank FocusPoint Rolltop 30L | 31L | 1.76kg3.9lb | 45.7×30.5×17.8cm18×12×7in | 100% | $269.75 |
| Think Tank Retrospective Backpack 15 | 20L | 1.8kg4lb | 40.5×30×18cm16×12×7in | 100% | $289.75 |
| Think Tank SpeedTop 30 | 30L | 1.4kg3.1lb | 54.6×29×17.8cm21.5×11.5×7in | 97% | $241.75 |
| Think Tank DarkLight 20L | 20L | 1.54kg3.4lb | 49.5×30.5×21.6cm19.5×12×8.5in | 89% | $199.75 |
| Think Tank Airport Essentials 26L | 26L | 2kg4.4lb | 44×29×22cm17.5×11.5×8.5in | 89% | $275.75 |
| Think Tank Retrospective EDC Backpack | 19L | 1kg2.2lb | 46×29×22.5cm18×11.5×9in | 86% | $239.75 |
| Think Tank Mirrorless Mover Backpack | 18L | 1.3kg2.9lb | 42×28×23cm16.5×11×9in | 86% | $149.75 |
| Think Tank Shape Shifter 37L | 33L | 1.76kg3.9lb | 48.5×31.5×22.6cm19×12.5×9in | 86% | $329.75 |
| Think Tank DarkLight 25L | 25L | 1.82kg4lb | 52×30.5×24.1cm20.5×12×9.5in | 39% | $239.75 |
| Think Tank Walker Pro 30L | 30L | 1.89kg4.2lb | 54.3×32.7×24.8cm21.5×13×10in | 39% | $289.75 |
| Think Tank Walker Pro 24L | 24L | 1.56kg3.4lb | 45.7×30.4×25.4cm18×12×10in | 3% | $249.75 |
| Think Tank Airport Commuter 31L | 31L | 2.2kg4.9lb | 48.5×33×26cm19×13×10in | 3% | $289.75 |
| Think Tank Airport Accelerator 41L | 41L | 2.8kg6.2lb | 49.5×34×26cm19.5×13.5×10in | 3% | $329.75 |
Ranked by the share of airlines they fit, then by weight. Specs come from Think Tank's own product pages. How we score carry-on fit.