This study evaluates the performance of a new 1-piece ostomy convex appliance in patients with enterostomy.

Primary outcome Measure:

To describe Investigational Device performance in term of level of leakage under the skin protector

Secondary Outcome Measure:

• Assessment of the condition of peristomal skin
• Assessment of other performance criteria
• Assessment of AEs for each patient

Inclusion Criteria:

• patient is at least 18 years old,
• patient having a colostomy or an ileostomy for at least 1 month,
• patient having a stoma's diameter inferior to 45 mm,
• patient having a flat or flushed or slightly retracted stoma,
• patient using currently a one-piece soft convex or standard ostomy appliance with closed or drainable bags,
• patient using a minimum of 1 product per day with closed pouches or minimum 1 product per two days with drainable pouches
• patient capable to apply and remove the pouch himself or with the help of a caregiver (except health care professional)
• patient having a mental capacity to participate to the study (i.e. to understand the study and to answer to the questions)
• patient agreeing to test investigational product during 14(±3) days.
• patient covered by social security

Exclusion Criteria:

• patient experiencing repeated leakages with his current appliance,
• patient receiving or having received, within the last month, chemotherapy or radiotherapy or corticotherapy,
• patient having a deeply retracted stoma,
• patient currently suffering from peristomal skin complications (bleeding or severe irritation or red and broken skin at the time of inclusion),
• patient already participating in another clinical study or who have previously participated in this investigation,
• pregnant or breast-feeding woman