Cool Yoleb 30oz Insulated Tumbler, 4-Pack (Dark Green)

The Cool Yoleb 30 oz Tumbler is a budget-friendly set of four double-wall vacuum-insulated stainless-steel tumblers with a powder-coated finish in Dark Green. Each tumbler holds 30 oz, features a flip lid (type unconfirmed from listing), and claims to keep cold drinks cold for 12 hours. Made from 18/8 stainless steel, the set is priced at $9.75 per tumbler ($38.99 total), making it a strong value play for households, offices, or bulk gifting. Cup-holder fit and lid leak-resistance are unconfirmed from the source data. The product targets budget-conscious shoppers seeking affordable insulation without premium branding, though Yoleb has limited track record in the competitive insulated-tumbler space.