
Second Skin Trunk 4"
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The American Eagle Second Skin Trunk is a 4-inch inseam boxer brief in modal stretch fabric, sold as a silky, breathable everyday trunk. Its signature features are a horizontal Quick Draw fly, a contoured pouch and a stay-put waistband with a tagless label. Solid colors are 90% modal and 10% spandex; heather shades blend in polyester. It suits men who want a soft, low-friction trunk for daily wear and who dislike vertical flies that gap. Against cotton trunks it is smoother and more stretchy, but modal needs gentler washing to hold its shape. Buyers rate it highly, with the fabric feel and pouch comfort the most repeated praise.
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With over 39,000 ratings averaging 4.7 out of 5, owners mostly praise the soft fabric, the comfortable pouch and the fly that actually works. Complaints are fewer and tend to focus on fit and durability over time.
The Second Skin Trunk is a 4-inch men's trunk made from a modal stretch fabric. The fabric is soft, supportive and naturally breathable. It is non-pilling, so it does not form lint balls or fuzz after washing. It is designed for daily wear.
A horizontal Quick Draw fly opens across the front for fast, easy access. A curved contour pouch supports the natural shape without restriction. The stay-put waistband does not roll, bunch, pinch or leave marks, and the label is tagless for added comfort.











