Length of garment
Customers have goods sent by vessel or by air (express company) most, there are 3 points would be considered when choosing way of shipping:
1 price of shipping, obviously money is the first point we would consider, vessel is much cheaper than air.
2 urgency, it would be much faster by air than by vessel
3 weight or volume of goods, when weight or volume is small, air may not certainly be cheaper than vessel