Yes you can
Beat buy, amazon bose official site. All have replacement pads.
https://www.bose.com/en_us/products/headphones/headphone_accessories/qc35-ear-cushion-kit.html
https://www.bestbuy.com/site/bose-quietcomfort-35-headphones-ear-cushion-kit-black/6293607.p?skuId=6293607&ref=212&loc=1&extStoreId=329&ref=212&loc=1&gclsrc=aw.ds&ds_rl=1266837&gclid=CjwKCAjwv6blBRBzEiwAihbM-dV58t72emBQtyJHG_WsKvD9Jn8pxFp5sm70bAw4CB94fE2hBkamsRoCldoQAvD_BwE
Replacement Ear Cushion Kit/Ear Pads Compatible with Bose Quiet Comfort 35 (QC35) & QuietComfort 35 II (QC35 II) Headphones, Black https://www.amazon.com/dp/B07N583YV2/ref=cm_sw_r_cp_apa_i_L4DQCbMTHATH6