I tried a pair of memory foam tips with the WYZE Buds (not Pro) and they fit on the buds.
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The buds will fit in the case with the memory foam tips I used, but, require some encouragement (the case will be opened a little but the buds still align to the charging pins). The memory foam tips get deformed in the case, and have to expand for a second once removed.
these add some serious comfort, but they do cause the buds to stick out of your ears a little further as they are larger in depth than the standard silicon tips.