ance ▁is ▁ 3 D ▁manufact uring ▁custom - fit ▁sho es ▁for ▁athlet es . ▁▁ 3 D ▁printing ▁has ▁come ▁to ▁the ▁point ▁where ▁companies ▁are ▁printing ▁consumer ▁grade ▁eye we ar ▁with ▁on - dem and ▁custom ▁fit ▁and ▁sty ling ▁( although ▁they ▁cannot ▁print ▁the ▁l enses ). ▁On - dem and ▁custom ization ▁of ▁glass es ▁is ▁possible ▁with ▁rapid ▁pro tot yp ing . ▁ ▁However , ▁comments ▁have ▁been ▁made ▁in ▁academic ▁circles ▁as ▁to ▁the ▁potential ▁limitation ▁of ▁the ▁human ▁accept ance ▁of ▁such ▁mass ▁custom ized ▁app arel ▁items ▁due ▁to ▁the ▁potential ▁reduction ▁of ▁brand ▁value ▁communication . ▁ ▁In ▁the ▁world ▁of ▁high ▁fashion ▁cour ti ers ▁such ▁as ▁Karl ▁L ager feld ▁design ing ▁for ▁Ch anel , ▁I ris ▁van ▁Her pen ▁and ▁No a ▁Rav iv ▁working ▁with ▁technology ▁from ▁Str at as ys , ▁have ▁employed ▁and ▁featured ▁ 3 d ▁printing ▁in ▁their ▁collections . ▁Se lections ▁from ▁their ▁lines ▁and ▁other ▁working ▁with ▁ 3 d ▁printing ▁were ▁show c ased ▁at ▁the ▁ 2 0 1 6 ▁Metropolitan ▁Museum ▁of ▁Art ▁Anna ▁W int our ▁Cost ume ▁Center , ▁exhibition ▁" Man us ▁X ▁Mach ina ". ▁ ▁Indust rial ▁art ▁and ▁j ew el ry ▁▁ 3 D ▁printing ▁is ▁used ▁to ▁manufact ure ▁m ould s ▁for ▁making ▁j ew el ry , ▁and ▁even ▁the ▁j ew el ry ▁itself . ▁ 3 D ▁printing ▁is ▁becoming ▁popular ▁in ▁the ▁custom