From Fehr Trade:
These leggings have no inseams! Instead, a curved, outer seam runs from the back of the ankle up to the centre front, where it joins a separate yoke piece. There’s an optional, hidden back pocket, elasticated waistband, and your choice of three lengths: biker short, capri, or full length leggings.
Intermediate sewing skills are required for this pattern - some experience with sewing knits is expected. Note that this pattern requires stretch jersey fabric with good recovery - it is drafted with negative ease (the finished garment will be 90% of body measurements). The biker short hem ends 13 cm (5 in) above the knee and the capri hem ends 8cm (3 1/4 in) below the knee.