An upper-body garment comprising: a torso portion having a front aspect, a back aspect, a neck opening, a waist opening, a first sleeve opening, and a second sleeve opening; and a first sleeve extending from the first sleeve opening and a second sleeve extending from the second sleeve opening, wherein the back aspect of the torso portion comprises: a pouch structure having a perimeter edge, the perimeter edge extending from an outer-facing surface of the back aspect of the torso portion so as to define a cavity between the pouch structure and the outer-facing surface of the back aspect of the torso portion, characterized by a first strap extending from a first lateral side of the pouch structure and configured to encircle the first sleeve, the first strap having a first end extending from an upper part of the first lateral side of the pouch structure, a second end extending from a lower part of the first lateral side of the pouch structure, and an intervening portion extending between the first end and the second end, a second strap extending from a second lateral side of the pouch structure and configured to encircle the second sleeve, the second strap having a first end extending from an upper part of the second lateral side of the pouch structure, a second end extending from a lower part of the second lateral side of the pouch structure, and an intervening portion extending between the first end and the second end, a first closure mechanism positioned on the outer-facing surface of the back aspect of the torso portion, the first closure mechanism aligned with a portion of the perimeter edge of the pouch structure, and a second closure mechanism complementary to the first closure mechanism, the second closure mechanism positioned on the outer-facing surface of the back aspect of the torso portion so as to be a mirror-image of the first closure mechanism with respect to a hypothetical horizontal line dividing the back aspect of the torso portion into an upper half and a lower half, and wherein the intervening portion of the first strap is configured to encircle the first sleeve, and wherein the intervening portion of the second strap is configured to encircle the second sleeve. a first strap extending from a first lateral side of the pouch structure and configured to encircle the first sleeve, the first strap having a first end extending from an upper part of the first lateral side of the pouch structure, a second end extending from a lower part of the first lateral side of the pouch structure, and an intervening portion extending between the first end and the second end, a second strap extending from a second lateral side of the pouch structure and configured to encircle the second sleeve, the second strap having a first end extending from an upper part of the second lateral side of the pouch structure, a second end extending from a lower part of the second lateral side of the pouch structure, and an intervening portion extending between the first end and the second end, a first closure mechanism positioned on the outer-facing surface of the back aspect of the torso portion, the first closure mechanism aligned with a portion of the perimeter edge of the pouch structure, and a second closure mechanism complementary to the first closure mechanism, the second closure mechanism positioned on the outer-facing surface of the back aspect of the torso portion so as to be a mirror-image of the first closure mechanism with respect to a hypothetical horizontal line dividing the back aspect of the torso portion into an upper half and a lower half, and wherein the intervening portion of the first strap is configured to encircle the first sleeve, and wherein the intervening portion of the second strap is configured to encircle the second sleeve.