I have used this one from Spigen since launch for my Xand love it. It holds 2 cards and an emergency$20. https://www.amazon.com/Spigen-Armor-Designed-Apple-iPhone/dp/B074CNGG4N/ref=mp_s_a_1_3?ie=UTF8&qid=1547897990&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=spigen+wallet+case+iphone+x&dpPl=1&dpID=514kiAbFXmL&ref=plSrch