After Della sells her hair and uses the money to purchase a beautiful watch chain for her husband, Jim, he returns home. The narrator tell us,
He looked thin and very serious. Poor fellow, he was only twenty-two—and to be burdened with a family! He needed a new overcoat and he was without gloves.
In other words, then, Jim is rather slight. His physical thinness is, perhaps, a symptom of his salary being cut from $30 to $20 per week (which we learned early in the story). He also appears to be very serious, despite his relatively young age. This is likely also linked to his reduced salary, as this has clearly taxed his household (and his wife), requiring a degree of parsimony they never experienced when he earned more. The fact that Jim has a wife to support—a responsibility to her—seems to have taken its toll on him. In addition, important articles of winter clothing are either in bad shape or are missing completely: Jim seems to appear the way Della felt at the beginning of the story.