Unknown schoulderboards...LW??...help please

[U-21]

Hello guys, I have found these straps with waffenfarbe yellow, but I'm not sure they're LW, these straps have a light manufacturing.
I ask for help to identify you, thanks in advance.
Regards
Uwe

[U-21]

kkkk

[Gran Sasso]

They are for the shirt in same color and material

[U-21]

100% Luftwaffe?

[Gene]

Yes