Compatible ModelsUBIUO sport silicone bands are specially compatible with Apple Watch 49mm 41mm 40mm 38mm 45mm 44mm 42mm iWatch SE Apple Watch Ultra, Series 8 Series 7 Series 6 Series 5 Series 4 Series 3 Series 2 Series 1, works with all previous versions for Apple Watch, a variety of color combinations, suitable for men and womenSoft, Breathable & LightweightUBIUO durable sporty strap is made of high-performance soft smooth silicone and hypoallergenic nickel free stainless steel material, prevents skin from irritation; flexible, lightweight, breathable, sweat-resistant, water-proof and skin-friendly, which feels comfortable next to your skin, super cute stylish summer bands for casual or everyday useAir Holes DesignUBIUO 4 pack sport bands are lighter and more breathable than the original apple watch band, because there are ventilation holes in the bands allow for air to circulate not causing sweat. Specially designed for workouts, swimming, cycling, climbing, hiking, camping, running, traveling and more outdoor activitiesDouble-Color DesignDouble-Color design make your watch more fashionable, youthful and sporty, perfect for everyday wear or being active, and is complimentary to almost anything you wear. Multipack bands can also be mixed wearing, create your own unique style. It's also wonderful gift for your family and friends during wedding, party, holiday, birthday, anniversary, Mother's Day, Thanksgiving Day, Christmas, New year, etcEasy Installation and RemovalUBIUO breathable sport band compatible for all versions of Apple Watch, the band comes with watch Lugs on both ends, which locks onto iWatch bands interface precisely and securely. It can effectively prevent the sports iwatch strap from falling off and becoming loose. Easy and direct installation and one button removal. Please feel free to message us if you have any questions