Options of a product

Hi,

I am setting up a MarketPress site and have a question:

If I have a product like a shirt is there a way I can have options that the customer must select from?

e.g.

Shirt:

Option 1 - Neck size
15in
16in
17in

Option 2 - Body length
Standard
Long
Extralong

Option 3 - Colour
Red
Blue
Green

I would like them to select one selection from each option giving me an item of

Shirt / 16in / Long / Blue.

Thanks in advance.

Ian