This bralette pattern made for S-M size. A-B cup size.
Make it with linen. Suitable for sportswear.
Use stretchy elastic strings to finish the bottom and straps. Measure elastic on Your figure.
Best suitable for bust measurements from 33.4 to 37.7 inch
Best suitable for bust measurements from 85 to 96 centimeters.
Easy to sew. I sew it with linen.
Made for stretchy lycra fabric.
This sewing pattern also is suitable for a swimsuit top, lingerie, or crop top type of blouse.
The Pattern is in PDF format. 
You will need to glue some details together. 
This PDF doesn't include a tutorial on how to sew it.
Made for regular A4 format printer.

A really simple pattern is suitable for beginners!
It requires about 14 inches or 35 centimeters of the main fabric.