Not a good idea.
Shoes are more expensive than $50 and the Customs racket might kick in.
They might try to prize the goods according to their charts, add s&h and freight and come up eith a taxable figure, even requiring a customs expert intervention and fees.
A potential headache of a gift.
And i'm not counting going to the post office / customs office and waste a day or two swimming in paperwork. Just saying.
Murphy's Law knows no quarantine.
Iz