The Underground Stainless Steel Tumbler

The Underground Stainless Steel Tumbler – Sip in Silence

No noise. No flash. Just pure function and form. The Underground Stainless Steel Tumbler is sleek, durable, and as cold-blooded as the organization behind it. Designed to keep your drink icy for hours, it’s the go-to tool for late-night linkups, stakeouts, or silent getaways.

Engraved with The Underground’s insignia, this tumbler is a quiet flex—recognizable only to those in the know.
Sip slow. Move quiet. Stay one step ahead.
From the shadows, we rise.

• High-grade stainless steel tumbler
• 20 oz (600 ml)
• Tumbler size: 3.11″ × 8.42″ (7.9 cm × 21.4 cm)
• Straw and lid included with the tumbler
• A cylindrical shape (top to bottom)

Disclaimer: Not dishwasher or microwave safe. Hand-wash only.

Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the lead, cadmium, heavy metals, aromatic amines level requirements.

In compliance with the General Product Safety Regulation (GPSR), Brighter Times and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at PO Box 111
Mount Uniacke
Nova Scotia B0N1Z0 or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

Size guide