The det'sya aren't an article of clothing,- they're a system of ritual tattoos that boldly proclaim a t'sa's clan, profession, and personal tastes.

Det’sya patterns are sold or designed like human athletic logos or tee shirt slogans; it’s up to the t’sa to find a tattoo artist capable of rendering the desired design. (T'sa det’sya artists are preferred, but many human tattoo parlors cater to expatriate t’sa.) T’sa with current det’sya patterns gain a +2 bonus to interaction checks with other t’sa.