Wikipedia
Kangaroo pocket
A kangaroo pocket is a type of pocket, usually featured on hoodies and sweatshirts, that is large enough to fit both hands into. The pocket is open on either side. Other names for it include muff pocket and hoodie pocket.
The pocket sits on the lower front section of the shirt. It is usually large enough to contain some personal belongings. The kangaroo pocket is most associated with casual clothing such as the hoodie or sweatshirt.
Usage examples of "kangaroo pocket".
The map table showed the results, revealing the difference these tanks were making.
She took a length of black nylon cord from the suit's kangaroo pocket and threaded it through the round hole above CHUBB.