A tubular bowel management assembly for carrying malodoriforous or faecal matter from the rectum, the tubular bowel management assembly comprising a silicone based tube with one end insertable into and retainable within the rectum using an inflatable anal bulb, the tube extending externally from the rectum for conveying waste matter from the body to a collection container or bag. A tubular sleeve member comprising a flexible film odour barrier material of one or multiple layers with an oxygen transmission rate (OTR) no more than 1,000 cc/m2/day at 23°C, with the sleeve fitted and fastened either inside or outside the silicone tube using adhesive, heat, pressure or mechanical friction fit. The sleeve member material is selected from poly(vinylidene chloride) (PVDC) poly(vinyl alcohol) (PVOH) an ethylene vinyl alcohol copolymer (EVOH) a polyamide (nylon) or co-polyamide or polyamide blends selected from PA-6, PA-6,6, PA-11, and PA-12, amorphous polyamides, MXD6 polyamide a polyester (PET) a polyester elastomer glycol-modified polyester (PETG) a polyester or co-polyester blend poly(acrylonitrile) (PAN) polyurethane (PUR) polyvinyl chloride (PVC) polychlorotrifluoro ethylene (PCTFE) styrene-acrylonitrile copolymers acrylonitrilebutadiene- styrene terpolymers poly( methyl methacrylate) styrene-butadiene copolymers.
