Notes:

To make different sizes of these booties, work them using different hook sizes.
Two yarn colors are used; one is the main (yarn A) and few meters (yards) from a another color yarn (yarn B).
I always chain 2 to begin the dc round, because I think it makes the work look tighter, so feel free and begin with what you think suits you.
When crocheting the trc, always insert the hook into two rounds below, skipping the previous round, (it is also mentioned in the granny square tutorial).

Materials:

-Yarn: Alize Diva Silk effect (for the red booties and the blue booties), Alize cotton club yarn (for the yellow booties).

-Hook size: 2.5 mm (for the red booties, which are suitable for six month old baby). 3 mm (for the blue booties, 6-9 months old), and 3.5 mm (for one year old).

-Stitch markers

-Yarn needle