The invention relates to a transfer sleeve (1) for aseptically transferring a fluid from a first container (2) to a
powder or from a fluid to a fluid in a second container (3), the transfer sleeve comprising two tube sections (4, 5) extending in the same direction and having different lengths in the longitudinal direction (L) of the tube sections (4, 5), wherein the longer tube section (4, 5) ends in a piercing tip (6), wherein the tube sections (4, 5) are designed to be fixedly connected to a
coupling wall (8) cylindrically surrounding the tube sections (4, 5), wherein the
coupling wall (8) has a recess (15) corresponding to each tip (6) and on both sides opposite to the longitudinal direction (L) of the tube sections (4, 5) extending to the terminal edge (16) of the
coupling wall (8), in which recesses (15) the piercing tips (6) of the tube sections (4, 5) are respectively exposed in a side view. In order to improve a transfer sleeve of the type described in a manner that is advantageous, particularly in terms of use technology, it is proposed that the coupling wall (8) protrudes beyond the piercing tip (6) in the direction of the longitudinal extension (L) of the tube sections (4, 5) and that the recess (15) widens in a V-shaped manner corresponding to the terminal edge (16).