The Online Shop Will Open in 2023. LE PETIT BLU’s bandanas and neckerchiefs complement a smart business casual style. And they add a fun and creative twist to a quiet preppy style. contact@lepetitblu.com Tel. +33 (0)9 71 58 59 73 Tel. +33 (0)6 72 55 88 37 Sign up for our newsletter … and get notified as soon as our online shop goes live.