The GR2 is a bag from GORUCK with a volume of 40 liters. The total dimensions, including handles, etc. comes down to 22x12.5x9" making it suitable as carry-on baggage for 80% of all airlines listed below.
Below is a list of all airlines, with each color stating whether the GR2 is allowed as cabin baggage. Green means it is allowed with all tickets, yellow for some tickets, and red for none. In case you are more interested in seeing all available bags for an airline, click the button.
Air Algérie Air New Zealand Air Macau Air Italy Air India Air Seychelles Air Serbia Air Nostrum Air Malta British Airways Boliviana de Aviacion Blue Air Belavia Bangkok Airways Bahamasair Azerbaijan Airlines Avianca Delta Azul flybe Finnair Fiji Airways EVA Air Eurowings Etihad Airways Ethiopian Airlines Enter Air Easyjet Frontier Airlines Horizon Airlines Hong Kong Airlines Hawaiian Airlines Hainan Airlines Garuda Indonesia Iberia Iran Air Indigo Kenya Airways Juneyao Airlines Jetstar Asia Jetstar Airways jetBlue Airways Jet2 Japan Airlines United Airlines Kuwait Air Norwegian Onur Air Pakistan International Scoot SAS Scandinavian Republic Airways Ukraine International Turkmenistan Airlines Turkish Airlines TUI airways Transavia Airlines Tiger Airways Tianjin Airlines Thai Airways TAROM American Airlines Alaska Air LOT Polish Cathay Pacific Alitalia Air Baltic Air Astana Air Asia Aerolineas Argentinas Aeroflot Aegean Airlines China Airlines Cebu Pacific Austrian Atlas Global Asiana Airlines ANA American Eagle Allegiant Air All Nippon Airways (NH) Aircalin AirAsiaX Volotea Czech Airlines Croatia Air Conviasa China Southern Airlines Dragonair Kulula Oman Air Middle East Airlines Mango Malaysia Airlines Mahan Air Luxair Lufthansa Lion Air Group Qantas Airways Peach uTair Airlines Swiss International Air Lines Sun Express Sun Country SriLankan Airlines Spring Airlines Spirit Airlines Southwest Airlines South African Airways VivaColombia Virgin Australia Virgin Atlantic Uzbekistan Air Xiamen Wizz Air Vueling Volaris Gulf Air Trans States China Eastern Porter Airlines Air France Air Tahiti Air Niugini Biman Bangladesh Emirates Icelandair KLM Shenzhen Airlines Sky Airlines S7 Ryanair Royal Jordanian Royal Brunei Airlines Regional Express Ravn Alaska Qatar Airways TAP Portugal Aeromexico Aer Lingus Air China Air Canada (AC) Cayman Airways Cambodia Angkor Air Air Transat LATAM PenAir TAAG Angola WestJet