Premium 350ml Custom Logo Stainless Steel Vacuum Flask
High-grade 18/8 stainless steel ensures durability and rust resistance, with double-wall vacuum insulation for 12-hour hot/cold retention. Precision laser engraving for crisp, permanent custom logos, ideal for corporate gifts, promotions, or outdoor adventures. Sleek, leak-proof design features a threaded copper lining for superior temperature retention and a scratch-resistant exterior. BPA-free, odor-resistant interior suits daily commutes, gym sessions, or travel, with a compact 350ml capacity for portability. Wholesale-friendly pricing with bulk discounts, exclusively for global resellers and businesses seeking branded merchandise.