The wife is off to China for two weeks so looking for a small daypack for her for xmas.

Any ideas? She likes pink and she wants a small one she can uses when she goes to the tourist sights and generally around the city.

Any recommendations?

Apart from not being pink OMM works for my SO as does inov8. Neither are pink however.

Pinkness over-represented here:

http://www.hardcloud.com/products/ladies-luggage-n-wallets.asp

My sister has an Osprey daypack that she really likes, and my girlfriend is keen on her Osprey 80L pack. They seem well thought out, good quality, and make female-specific models.

balance the size of the backpack with the size of her breasts so she doesn't lose balance and fall over.

BBSB – that will be massive then …

Do they do C cup rucksacks?

Daughter has a useful pink DaKine pack that's v. comfy