prototype 9:Different envelops were made, each one has different straps, so that the straps can be tested with different fillings. Each envelop is made by stitching two patches of fabric and a velcro closure.
This one is made with elastics with two different widths: 20mm and 30mm
Elements of experience:
Positive expected: stays on the leg
Negative expected: too wide
Negative unexpected: the top elastic keeps going into the popliteal
|fabric velcro elastic|
1 sewing machine