Never be reluctant to ask a supplier about a price quoted for a garment, or anything for that matter.
Some people often seem reluctant, especially if the price is good.
They think questioning it will somehow let it slip, that its a good price.
But, keep in mind, it could be a mistake on the suppliers part, and when the supplier realises it, you could be in for a shock.
Always double check what a quoted price includes.
Is it for your Incoterm specified?
Does is include all raw materials and inputs?
If you have a nominated supplier for trims etc, does it include this cost?
Does it take into account your payment terms?
What is the validity of the price?
How will any exchange rate or commodity price fluctuations impact the price?
Does it include all sampling required once the order is confirmed?
I am sure you can think of some more questions, but never be afraid to double check every detail.