^{^} what they said + add these pads on top:

VEVER 2 pcs Replacement Earpads Ear Pads Cushion Foam for Grado GS1000i, GS1000e, GS2000e, PS1000, PS1000e Headphone https://www.amazon.com/dp/B071VXQNR9/ref=cm_sw_r_cp_api_glt_fabc_G2W15CB80TAFEDRY4P9C?_encoding=UTF8&psc=1