Adjustable shirt sleeve

A shirt sleeve configured to be coupled to a shirt torso portion, comprising:

• a sleeve proximal end configured to be coupled to the shirt torso portion;
• a sleeve distal end opposite the sleeve proximal end;
• a sleeve body spanning along an axis between the sleeve proximal end and the sleeve distal end at least partially enclosing a sleeve void configured to receive an arm of a wearer therethrough;
• and
• a sleeve diameter adjustment system, comprising:
• a slit through the sleeve body spanning at least a portion of a length between the sleeve proximal end and the sleeve distal end, wherein the slit comprises a slit proximal end proximate the sleeve proximal end and a slit distal end proximate the sleeve distal end;
• a first sleeve flap disposed on a first circumferential end of the sleeve body;
• a second sleeve flap disposed on a second circumferential end of the sleeve body, wherein the first sleeve flap and the second sleeve flap are separated by the slit;
• at least two columns of first fasteners coupled to the first sleeve flap spanning at least partially between the sleeve proximal end and the sleeve distal end, wherein a first column of the at least two columns of first fasteners is disposed closer to the slit than a second column of the at least two columns of fasteners;
• a column of second fasteners coupled to the second sleeve flap spanning at least partially between the sleeve proximal end and the sleeve distal end, wherein the second fasteners are complementary to the first fasteners such that each of the second fasteners is configured to couple to a respective at least one of the first fasteners, which results in the first sleeve flap and the second sleeve flap being coupled,
• wherein, a diameter of at least a portion of the sleeve void is smaller when a second fastener of the column of second fasteners is coupled to a first fastener in the second column of first fasteners than when the second fastener is coupled to a first fastener in the first column of first fasteners,
• wherein the diameter adjustment system is disposed on a bottom portion of the sleeve, such that the slit proximal end is disposed at least one of in or proximate to an armpit portion of the sleeve.

A shirt, comprising:

• a torso portion;
• and
• a sleeve spanning along an axis, comprising:
• a sleeve proximal end coupled to the torso portion of the shirt;
• a sleeve distal end opposite the sleeve proximal end;
• a sleeve body spanning along the axis between the sleeve proximal end and the sleeve distal end at least partially enclosing a sleeve void configured to receive an arm of a wearer therethrough;
• and
• a sleeve diameter adjustment system, comprising:
• a slit through the sleeve body spanning at least a portion of a length between the sleeve proximal end and the sleeve distal end, wherein the slit comprises a slit proximal end proximate the sleeve proximal end and a slit distal end proximate the sleeve distal end;
• a first sleeve flap disposed on a first circumferential end of the sleeve body;
• a second sleeve flap disposed on a second circumferential end of the sleeve body, wherein the first sleeve flap and the second sleeve flap are separated by the slit;
• and/or
• a tensioning device coupled to the first sleeve flap and the second sleeve flap across the slit, wherein the tensioning device is configured to adjust the diameter of the sleeve void by adjusting at least one of a width of the slit or an amount of overlap between the first sleeve flap and the second sleeve flap.