For Apple Watch Band: Stretch elastic straps with slidable buckle is suitable for 4.5inch -9.5inch wrist for men and women; | Adjustable iWatch Bands: Perfect elastic size helps more accurate detection of your blood oxygen level and ECG waveform and other workout readings, no irritating to your skin; | Premium Nylon Braided: Soft, lightweight, breathable, ultra-thin, comfortable and washable is ideal replacement bands for perspiration during daily sport; Upgraded connector with built-in metal achieves accurate match; | Compatible with apple watch series 7 6 5 4 3 2 1 SE 38mm 40mm 41mm and other iWatch edition. Please check and confirm the correct size on the back of your watch or the band itself; | Sotrade Brand: For the Different You, For Every Festival. Exquisite Packaging is also an amazing gift, simple and fashion design fit for any occasion.