Karlie Kloss shuns parties during Fashion Week.

The supermodel thinks it's imperative to take care of her skin and stay hydrated during the whirlwind marathon of fashion shows in New York, London and Paris and claims she ditches champagne for water to look her best on the runway.

She told PEOPLE magazine: ''I am definitely a sleep over champagne kind of girl. I'm a hardworking girl, so I have to take care of myself. You have to rest while you can, drink water and power through.''

Quizzed about her must-have item to get her through Fashion Week, Karlie said: ''These stick-on eye patch things that stick to your skin, called Skyn. I almost walk out of the house wearing them.''

The Victoria's Secret Angel - who walked the catwalk for Burberry at London Fashion Week yesterday (18.02.13) - admitted the worst thing about the fast-paced event is not being able to keep one nail varnish colour for long.

Karlie exclaimed: ''In fashion shows nails are almost as much of a statement as the clothes themselves. In every show you've got to change. It's awful when I get a great colour that I love and I'm like, 'Dang it, I only get to wear it for the next twenty minutes!' ''

The 20-year-old brunette has just closed shows for the likes of Carlina Herrera, Oscar De La Renta and Calvin Klein in New York, but she revealed the most important thing is keeping a level head and staying focused.

She said: ''It's a marathon, not a sprint... I know my limits.''