SmartNappy NextGen Hybrid Diaper is the most innovative and best-designed baby diaper available. Years of design, development, and testing with parents, pediatricians and babies were invested to create the best diaper. The SmartNappy provides Advanced Leak Protection. The SmartNappy is the reusable diaper system that eco-conscious parents have been looking for! Our Advanced Leak Protection features a Double Guard - the only baby diaper with 2 waterproof layers and 2 elasticized barriers. The SmartNappy Reusable Inserts Size 2, 10 pack includes 5 Tri-folds and 5 Boosters. Reusable Inserts fit easily into SmartNappy Pocket-Sling and stay secure. Highly absorbent with Stay Dry Feel top layer wicks away liquid for baby's comfort. Quilted Poly + Cotton + Microterry. Slim profile with patented design reduces bulk. Available in three sizes. Size 1 Reusable Inserts are compatible with the SmartNappy Size 1 Diaper Cover. Size 2 Reusable Inserts are compatible with the SmartNappy Size 2 Diaper Cover. Size 3-4 Reusable Inserts are compatible with both SmartNappy Size 3 and Size 4 Diaper Covers. When you change baby's SmartNappy, you can use one Tri-fold Insert and add the booster, if extra absorbency is needed. Most parents tell us that the Tri-fold is sufficient during the day, and they use the Booster at night. Parents love the SmartNappy Easy Wash and Quick Dry. The Tri-fold design makes washing quick, effective, and drying 2-3x faster. Easy and effective washing with a typical washing machine and quick drying with a tumble dryer or a line. Machine wash and tumble dry. SmartNappy Disposable Inserts are sold separately on Amazon. Environmentally friendlier disposable inserts when extra convenience is needed. Smart for Baby. Smart for Parents. Smart for our Planet. The perfect choice for environmentally conscious and fashionable parents. Patented Design and Doctor Recommended. Let's make a positive change for a more sustainable future!