The cloak — Either the toga, which belonged to him as a Roman citizen, or an upper garment, which might be needful as winter came on. Which I left at Troas with Carpus — Who was probably his host there. Especially the parchments — The books written on parchment.
Related Commentaries of 2 Timothy 4:13
2 Timothy 4:13
13 The cloke that I left at Troas with Carpus, when thou comest, bring with thee, and the books, but especially the parchments.