Welcome, pale rider!
If you are still not a SIOUX, you can’t order any SIOUX apparel.
To become a SIOUX, you have to receive your first SIOUX apparel as a gift from an already SIOUX, because only SIOUX members have the power (and the responsability) to add new fellows to the tribe. That’s the brand’s core concept and that’s what makes SIOUX so special.
So you can’t buy SIOUX apparel; you have to earn it.