🇰🇷SEIO
SEIO is a unisex, girly brand founded in 2021 in Korea. Rooted in Simplify, Essence, Individuality, and Openness, it offers typography-based epoxy phone cases and daily digital accessories, delivering restrained yet expressive designs that resonate with young women seeking lasting, meaningful style.
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![SEIO（セイオ）の「[MADE] linear rhythm case (epoxy)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/df51beae3a6b453087256f6a8956d5d6_250x.jpg?v=1785326535)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] linear rhythm case (hard)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/946dfe2a241b4ca5ad2c3d0f13d774c4_250x.png?v=1785326133)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] mint a case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/71b4c3b7db7d4cc8b13dbf347935af9f_250x.png?v=1785325874)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] calm frequency case （Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/b903d22ed096425fb872b109e5ed9e37_250x.jpg?v=1785325641)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] linear rhythm case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/9011bc164b20436ba2e28fa27f3ead61_250x.png?v=1785325319)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] calm frequency case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/2a482b6013b2479ca9cd83181030b9bd_250x.png?v=1785325171)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] memory room case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/c7c6def706b04ea1a72b7e52c4189e63_250x.png?v=1785323031)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] white echo case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/9e934548137444528059ae3310bca74f_250x.png?v=1785322873)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] pink glasses case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/635bfda7a6c34422a1ef6999ec446042_250x.jpg?v=1785322519)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] data angel case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/ea5f4d6839c54391aac4b9a6a6d2045b_250x.jpg?v=1785321876)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] second me case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/609788495d004aafb03ece25c6c319d1_250x.png?v=1785321322)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] white archive case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/9de87591153a4f14afd4a693b5b68c08_250x.png?v=1785320778)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] +layer case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/4171b2dbdd07486fb6e0a88c54bd0638_250x.jpg?v=1785320148)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] +layer card wallet（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/c6d864291c634a848ac5ce929ab23c98_250x.jpg?v=1785319291)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] chronofur case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/98c6abfd46e74657aa59e337897c0e7a_250x.jpg?v=1785315666)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] codepaw case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/9ee089aded1542ef87c3eb5525ff3a75_250x.jpg?v=1785315057)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] signal tide case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/67cf84f7138d482ba162749774ed01b2_250x.jpg?v=1785313705)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] fading waves card pack（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/f38e640a30f046e6a84c5113d6166e96_250x.jpg?v=1785313136)
7%OFF🇰🇷SEIO
Smartphone Accessories
$27
![SEIO（セイオ）の「[MADE] stripe case (brown mix)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/027f5497f7c44a23b51aad553dd5b938_250x.jpg?v=1785312271)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] stripe case (grey mix)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/a5959eb7c8e34ce2a015dd0da3f90c5c_250x.jpg?v=1785312304)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] monograph case (light blue)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/bb67ac68b2474f7a8ae3ef844362ee11_250x.png?v=1785249532)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] monograph case (grey)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/f628450aef5b4bb092eeee1b9b7f7586_250x.png?v=1785249306)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] monograph case (white)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/3b75c65e46e34c0b9174e4e76fa1ec4d_250x.png?v=1785249061)
10%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] angel.01 case (shining ver)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/80f139607cc747138ac6d7265035cfef_250x.jpg?v=1785247812)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] angel.01 case (chrome ver)（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/fc3c80beb4fc4416a2f5d9e3a72d2211_250x.jpg?v=1785246996)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] crushed reflection case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/68645b5269dc4457b2ad941dc3235b57_250x.jpg?v=1785245483)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28
![SEIO（セイオ）の「[MADE] piece of heart case（Smartphone Accessories）」](https://cdn.shopify.com/s/files/1/0066/0360/4086/files/8865eacd4f5c43c083538f391271d5e9_250x.jpg?v=1785242840)
7%OFF🇰🇷SEIO
Smartphone Accessories
$28