The 11 most luxurious amenity kits you can get on a first class flight

The luxury offerings are constantly being revamped to incorporate new high-profile fashion designers in order to give frequent fliers something to look forward to, and most importantly, a reason to stay loyal.

First class kits are usually packed with pamper products from top beauty brands — including Aesop, Aromatherapy, Bulgari, and Ferragamo — to keep passengers feeling hydrated and rejuvenated while in the sky.

Some major airlines now also offer their premium passengers designer in-flight sleeper suits and slippers to ensure the ultimate comfort during overnight long-haul flights.

Business Insider teamed up with the brains behind the Luxury Travel Expert blog to rank the best kits in first class travel.

Xavier, a doctor, university professor, and medical researcher, has 20 years of experience travelling the world for both business and pleasure. He writes about luxury hotels and airlines — and has been lucky enough to fly first class on many of them.

Scroll down for the 11 best first class amenity kits in the world according to the Luxury Travel Expert, ranked in ascending order.

11. United Airlines

United has teamed up with UK spa brand Cowshed

10. Delta Airlines

9. American Airlines

First class customers on American Airlines flights are treated to

8. British Airways

7. Qantas

Qantas, the airline that is expected to launch the world's first non-stop flights between Australia and London, offers its first class guests Martin Grant-designed sleepwear in addition to amenity kits.

Grant, Qantas’ creative director of fashion, designed the elegant unisex navy and black trim first pyjamas with 100% cotton, a tailored neckline, and a tapered silhouette, along with matching slippers.

Stylish male and female first class amenity kits come in the same navy hues and contain a range of bespoke ASPAR by Aurora spa products, Martin Grant-designed travel socks, dental kit, ear plugs, and deodorant. A Martin Grant-designed eye mask that cups the eyes for maximum light blockage is also included.

6. Air France

Air France's

5. Etihad Airways

4. Cathay Pacific

The Cathay Pacific first class amenity kit is loaded with

hand cream, lip cream, face cream, a toothbrush, toothpaste, mouthwash, earplugs, a hairbrush, a and cotton pads.

hydrating facial cream, rosehip seed lip cream, and r

3. Qatar Airways

2. Singapore Airlines

male and female first class amenity kits. Eau de Toilette from the a 30ml Eau de Parfum sample from the

Both bags contain

1. Emirates

There was truly no expense spared in the creation of Emirates' new first class amenity kits, the best in the world, according to Xavier.

The airline offers the world’s first moisturising lounge wear designed for passengers travelling in its first class cabins on overnight long-haul flights.

The slock in the moisture for up to 10 washes, so they can be re-used by other passengers. Packaged in a stylish felt pouch, the suits come with matching slippers and eye mask.

The new amenity kits, offered to both first and business class passengers on long-haul flights, feature Bulgari’s woody floral fragrance – Eau Parfumée au thé noir — and contain skincare essentials to keep customers feeling pampered throughout the flight.

The first class kit bags are made from real leather, and come in eight designs in charcoal grey for men and pale grey for women.

Added extras to the Emirates first class experience include the use of