Is it permissible to wear tight leggings under over-knee shorts in public?

Assalamualaikum, Recently alhamdulillah I started to (try to) apply the Deen as best as possible and I have lots of shorts in my possession that do not cover the awrah properly (are a little over the knee) As a solution can I wear tight leggings (cover 3/4 of the leg) under those shorts? It's more comfortable than wearing pants and I can still make use of the shorts, but I'm not sure if it's ok for my knee to be viewable in tight clothing publicly. If it's Haram completely, can I donate these shorts to poor people?