Thinx Ultra-Soft Overnight Boy-Shorts — Leakproof Period Underwear (Black, M)

Experience comfort-first protection with Thinx Ultra-Soft Overnight Boy-Shorts

Designed to feel like a premium pair of underwear, these shorts use a buttery-soft blend of SUPIMA cotton and TENCEL Modal. The result is a fabric that feels gentle against the skin while staying breathable and lightweight enough to wear all night or all day. The design emphasizes a smooth silhouette, so you can wear them under any outfit with confidence.

Why this feels different

The underwear combines a soft handfeel with a flexible fit, delivering a comfortable base layer that works with your body’s natural movement. A built-in leak protection system remains discreet, so you can focus on your day without constant adjustments.

Overnight absorbency and leak protection

• Holds up to 12 tampons’ worth of flow for overnight reliability.
• Absorbent core can handle up to 3 regular pads’ worth of flow.
• LeakSafe barrier supports protection for up to 12 hours, while remaining as comfortable as regular underwear.

Dry, fresh and odor-controlled

• Moisture-wicking fabric helps keep you dry and comfortable throughout wears.
• Odor-control features help you feel fresher, even during long days.
• FSA/HSA eligible and can replace disposables or serve as a backup to tampons or cups.

Real-life uses

Perfect for sleep, travel, or busy days when you want reliable protection without sacrificing comfort. The reusable design offers a sustainable alternative to disposable products while fitting into everyday routines.

Care, sustainability, and the brand

Since 2013, THINX has pursued innovative, inclusive solutions for menstruation and leaks. These reusable underwears are designed for easy care and long-lasting use, helping you reduce waste while enjoying everyday comfort.

Note: individual results may vary. This product is designed to provide protection within its intended use and does not guarantee specific outcomes.