PUMP! Lithium Trunk
DESCRIPTION
The PUMP! Lithium Trunk is a bold, low-rise trunk that offers a supportive and sculpted silhouette, sitting just below the natural waistline. Its tailored fit features a mid-thigh inseam, providing room to move while maintaining structure. Made from a breathable mesh fabric, this trunk is cool to the touch and moisture-wicking, keeping you fresh throughout the day. The contoured, double-lined pouch provides lift and support, enhanced by thick piping for added definition. The thick, no-roll waistband features bold branding and delivers a firm hold, ensuring it stays in place. Contrasting piping and panel details add visual flair to this performance-driven piece.
- Fit: Low-rise with a mid-thigh inseam.
- Feel: Cool, breathable, moisture-wicking.
- Pouch: Contoured for lift and support.
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Waistband: Thick, no-roll with bold branding.
FABRIC
Cotton 78% / Nylon 12% / 10% Elastane
CARE INSTRUCTIONS
DISCREET SHIPPING
We ship in discreet packaging. The return address says "UEX Fulfillment". All US orders are fully discreet.
International Orders Only:
If you are ordering items to ship outside of the United States, there will be customs forms that contain product information if required by the destination country.
Size Assistant
PUMP! underwear
| Size | Waist (in) | Waist (cm) |
| Small | 28-30 | 71-76 |
| Medium | 31-33 | 79-84 |
| Large | 34-35 | 86-89 |
| X-Large | 36-38 | 91-97 |
| 2X-Large | 39-40 | 99-102 |





























































































































