Woman leggings pattern.  Scrunch Butt Yoga pants. High waist sports Workout Leggings DIY pattern.
Booty up tights sewing
 
Video on how to make these leggings: 
 
https://youtu.be/k5oyPe7rYe0

Made for stretchy lycra fabric.
Pattern in sizes  XS, S, M, L (EU  34, 36, 38, 40, 42). 
The Pattern is in PDF format. 
You will need to glue some details together. 
Made for regular A4 format printer.
 
This pattern suitable for leggings, yoga pants, or any other sportswear. Without side seam! High-waisted leggings.
A simple pattern is suitable for beginners. DIY pants
It requires about 47 inches or 120 centimeters o  spandex fabric.  Add seam allowance.
 
The easiest way to make it: sew everything with overlock, Sew butt part with overlock simple seam, then make ruffles (scrunch butt) by hand. It will be written on the pattern, which part should be ruffled.