Pantheon is a high quality manufacturer of wireless accessories. These soft leather Apple Watch replacement bands are made to last. If they ever fade or break, you can contact us and we will refund your money and/or send a replacement iwatch band right away. Compatibility Series 3 Series 2 Series 1 NikeSizing: 38MM will fit like a Small to Medium (S/M) 42MM will fit like a Medium to Large (M/L) Please make sure that you choose the correct size based on which watch you have and the size of your wrist. NOTICE: This product is not manufactured or endorsed by APPLE (Alphabet, Inc). We are a third party company and manufacturer of high quality Apple certified products (like our Portable Apple Watch Charger).