Air France is a member of the SkyTeam alliance and has a network that spans five continents. The Business Class cabin is a popular redemption for members of partner programs such as Delta SkyMiles.

The French carrier is currently updating its Business Class cabins to feature the 1-2-1 layout. The latest Boeing 777-300ER design includes more modern finishes and a sliding door at each seat to add privacy. There are still some Boeing 777/777-300s that are a 2-3-2 layout with middle seats in business class, so you'll want to avoid that.

No matter which plane you fly on, the typical French feel with fine dining and elegant presentation remains the highlight of Air France's Business Class. You can try it out by paying cash or redeeming miles.

Here's what you need to know before flying business class with Air France.

How is business class on Air France?

Air France loves to highlight the "Frenchness": fine dining with partner chefs, champagne, delicious French cheeses, and amenity kits brimming with Clarins products.

In addition to the French touches, Air France offers many of the perks you might expect from business class. Here are some of the headlines:

bag allowance. The airline limits Business Class passengers to two checked bags weighing up to 70.5 pounds each. Flying Blue (Air France-KLM's loyalty programme) or Senior Elite members with SkyTeam Elite and SkyTeam Elite Plus can check the third bag for free with the same weight limit. The airline restricts carry-on baggage, often weighing it or keeping it in sized units to make sure it will fit. Passengers can bring one bag measuring 21.7 x 13.8 x 9.9 inches (including wheels and handles) and one personal item. Business class passengers are limited to 40 pounds over the combined weight of both items.

Boarding. Business Class passengers can take advantage of SkyPriority boarding passes, allowing them to board earlier or at any time during the boarding process.

seats. Air France operates the Boeing 777-200 and 300 as well as the Boeing 787 Dreamliner and Airbus A330 and A350 on long-haul routes. These are nearly all in a 1-2-1 or 2-2-2 layout, with only a few medium-seat Boeing 777-300s in a 2-3-2 layout. Business Class seats lie completely flat, with infotainment screens and plenty of personal space. Ideally, fly in an aircraft that provides aisle access to all business class passengers, such as the A350 or B787 Dreamliner.

lounge. Air France has lounges for business class passengers that serve champagne, wine, cocktails, soft drinks and juices. Buffets often contain hot and cold foods including cheese, salads, and pastries. A few lounges also have spa treatment areas with complimentary massages and facials for passengers. The airline also has a network of lounges around the world, including airports such as Bangkok, Frankfurt, Houston IAH, New York JFK and Washington Dulles.

How to book business class tickets on Air France

It's easy to book business class with Air France using cash or miles, but remember that Air France doesn't offer free upgrades, even to elite members. However, Air France may sometimes sell cash or miles upgrades upon check-in.

When using the Air France website, you can switch between 'book a flight' or 'book with miles'. If you are booking an award, make sure you are logged into your Flying Blue account.