oi tape non-vented sample 5-pack gives you the perfect way to try our solid, non-vented mouth tape before committing to a full pack. Made in the USA from non-toxic, breathable woven mesh fabric, each strip stays securely in place all night, is gentle on facial hair, and removes cleanly without residue. Designed to encourage nasal breathing, reduce mouth dryness, and support deeper, more restorative sleep- now in a convenient 5-strip trial or travel size.