themes suited for wholesaling clothing

Hi all.I plan to wholesale kidswear online. so kidswear has filters of sizes and colours.
Now i want a shopping cart solution where in the product selction page all colour and all the sizes under each color are listed and customer can add multiple color into size selection with varying quantity in minimum number of clicks without having to go to add to cart option in traditional methods where one sees that window after each colour into size selection.
For eg: For a Tshirt which comes in three colors – a b and c and sizes 1 2 3, a customers requirement is 1 pc in selection a1, 2 pc in selection c3 and 5 pc in b1.
He can do that in a single product display window with minimum clicks since all combinations are displyed in single product display page and add to cart popup window after each selection is done away with.
The need for having a shopping cart mentioned above is the per piece wholesale price of my products is very low, so if i want a minimum billing amount of INR 5000 a customer might have to buy around 25 to 30 pcs. so reducing the number of clicks and easing the color into size selection experience in the product display page might make the wholesale shopping option much easier and faster.