Can anyone find this sweater found on vinted? Reverse image search

Link : r/Pandabuy

WDYWT] 30 degree Fit!!! : r/streetwear

Link : r/Pandabuy

WDYWT] 30 degree Fit!!! : r/streetwear

WDYWT] 30 degree Fit!!! : r/streetwear

Can anyone find this sweater found on vinted? Reverse image search comes up with almost nothing : r/findfashion

WDYWT] 30 degree Fit!!! : r/streetwear

20kg haul (trapstar, nike, j4, tshirt) : r/hagobuy

Anyone know what flag this is? Image search yielded no results : r/vexillology