Did Clothier properly reject the ties tendered on June 30?
No, because Kravat cured the June 1 defective delivery by his tender of conforming goods on June 30. 
No, because a contract for the sale of goods can be modified without consideration
Yes, because Kravat's shipping the threeinch ties on June 1 was a present breach of contract. 
Yes, because Kravat's shipping the threeinch ties on June 1 was an anticipatory repudiation. 