Background Currently, no evidence compares outcomes for techniques utilizing surgical specimen extractions bags versus unprotected extraction. Methods Evaluation of sleeve gastrectomies performed at two high-volume centers. Cases where an extraction bag was used (+EB) were compared to bag-less extraction (-EB). Outcomes included operative contamination, surgical site infections and extraction-site hernias. Results 674 patients were evaluated (417 in the +EB group and 257 in the -EB group). Preoperative characteristics were similar between groups. There was a trend toward shorter operative times with the -EB group (-EB = 100 min vs + EB = 106 min, p = 0.07). Gross spillage was documented as a contaminated case in 0.4% of -EB cases compared to 1.2% in +EB cases (p = 0.51). Two superficial infections were appreciated (1.2% = +EB vs 0.7% = -EB, p = 0.7) with one post-operative abscess in the -EB group (p = 0.61). One post-operative hernia was seen in each group (p = 0.62). Discussion Bag-less extraction is a safe, resource conscious method that may potentially decreased operative time.