- ADJUSTABLE SHOULDER STRAP WI Size Type: INT SKU: EB-SBMPN09U07_LV520Z645Y Welcome to the official LUOSOPHY Poshmark closet! LUOSOPHY is a luxury brand reselling company founded in San Diego, CA from 2016. All our products are imported from Italy and sold in the USA. We do our best to provide high fashion, luxury items at affordable prices. We guarantee all our products are 100% authentic. Shop with us and you will forget about shopping at department or brand name stores. Our prices will easily beat their prices.