Disclosed are enclosures for establishing a sterile environment over a patient for a medical procedure, as well as systems and methods thereof. An enclosure can include an expandable portion of a barrier separating a sterile environment inside of the enclosure from a non-sterile environment outside of the enclosure and a patient-interfacing portion of the barrier. The enclosure can also include a support system coupled to the patient-interfacing portion of the barrier in some embodiments. The patient-interfacing portion of the barrier can include one or more fenestrations for placement directly over one or more areas of interest of the patient, as well as for access to the areas of interest from within the sterile environment. When present, the support system can flank the fenestration. The support system is configured to support the enclosure on a surface when placed over an appendage of the patient or a main body of the patient.