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Delivery is scheduled for 04/19.
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*Delivery of products may take some time in cases where the order is placed on Saturdays, Sundays, or public holidays, or depending on stock availability.

When the heat is on, your underwear should work as hard as you do. The SHEATH 4.0 AirFlow combines the revolutionary, patented Dual Pouch support you trust with an ultra-breathable Polyamide Mesh blend—our coolest, most flexible fabric yet.
Designed for intense activity, hot climates, and all-day freshness, the AirFlow ensures everything stays separated, supported, and perfectly ventilated. Upgrade your comfort and conquer heat and humidity without compromise.
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| Feature Focus | The Direct Benefit for You |
| AirFlow Polyamide Mesh | An unprecedented level of breathability. The lightweight mesh fabric maximizes airflow, drastically reducing sweat and heat buildup in high-friction areas. |
| Patented Dual Pouch System | Provides continuous isolation and superior support—eliminating skin-on-skin contact (chafing) and distracting readjustments. |
| All-Day Performance | The 4.0 Boxer Brief design offers a standard leg length and is built for flexibility and quick-drying comfort, perfect for athletics or long days outdoors. |
| Premium 3-Pack Value | Invest in your comfort with three pairs of our most advanced performance briefs for just $74.00. |
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Color Combos: BLACK & BLUE, GRAY & GOLD.
Sizes: Available from XS (24-26\") up to XXXL (48-50\").
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The AirFlow series is extremely popular, and many sizes are currently Sold Out. If your combination is available, secure this 3-pack for free standard shipping before it’s gone!
Click \'Add to Cart\' and experience true freedom from heat and friction.
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