This is a very simple crochet pattern with a zig zag pattern on the front as a nice little detail.
It’s sized as 0-3 months with a 8 stiches x 5 rows gauge for every 2 inches with a 3.5mm hook. You may need to use a bigger or smaller hook you do not get the sizing you need with the 3.5mm hook.

Any DK weight should work pretty well, but I used a spare ball of Nako Saten I had lying around.