Rob wears Ralph Lauren USS Striker Jacket

Mystery solved!  Nope, not bird poop, nor did Rob ate a box of sugary doughnuts.  He didn't also help painting the Eclipse set. lol

JACKET Deets from  source
"Retail $550.00. Rare piece from RRL.
Available at the Bleecker St Store in the West Village, NYC and a handful of High End Boutiques and Department Stores. Low, no reserve price as always.
DOUBLE RL (RRL) Vintage RRL Navy Jacket
Chino style jacket. Full zip with 6 button placket. Straight collar. Brass Conmar zipper pull with leather trim.
2 front pockets. Adjustable side tabs. 2 button cuff. Underarm grommets.
DISTRESSED BLACK with U.S.S. DOUBLE RL patch on right sleeve. USS Striker US RRL Shark print on back. Multi-colored Paint splatter and smear detailing all over. "
via spunkransom