A suede kippah is 6″ which is the standard size.
Sizes start at 4″ are available in 1/4″ increments.
The largest I have done so far has been 9″.
Measure the diameter of your favorite kippah to know the right size for you.
If you would like a kippah for a Bris I can attach a strap with velcro. The rough side will be on the kippah, it will stick to the thin hair of a toddler and can be used for years to come.
I can sew clips on the inside of the kippah for those who like to hide the clips.
The cheapest clips I have found so far are as follows;
Silver Clips; 100 pieces =$0.09/pc- https://www.amazon.com/Snap-Clips-100-Pack-Barrette-Accessories/dp/B07JK269W4/ref=sr_1_33?keywords=silver+hair+clips&qid=1585279391&sr=8-33
Blsck Clips 120 pieces = $0.07/pc – https://www.amazon.com/Clips-Barrettes-Black-Girls-Women/dp/B07R8QMMS3/ref=sr_1_2?keywords=black+hair+clips&qid=1585282023&sr=8-2
Rainbow colored 120 pieces = $0.06/pc – https://www.amazon.com/Clips-Barrettes-Solid-Candy-Colors/dp/B07P5N7HHD/ref=sr_1_36?keywords=hair+clips&qid=1585282489&sr=8-36