Description Provide security and comfort using The Assura Drainable Pouch by Coloplast. It is a Convex Pouch with Standard Wear Adhesive and EasiClose Drainable Pouch. Convex colostomy pouch provides shallow convexity for flush or slightly retracted stomas. This pouch design provides flexibility, security and low pressure to the abdomen. The ileostomy pouch is hygienic and a secure pouch for people with ileostomies or colostomies.