Quick answer
Machine wash your Pair of Thieves bamboo boxer briefs on cold, gentle cycle, then tumble dry low. Avoid hot water, bleach, and high heat to preserve the fabric's softness and elasticity.
Why bamboo rayon needs special care
Rayon made from bamboo is prized for its breathability and softness, but it's more delicate than cotton. The 5% spandex blend gives the briefs their stretch, which can break down under high heat or harsh detergents. A careful routine keeps the fabric from pilling, fading, or losing its shape.
Step-by-step care routine
- 1. Turn the boxer briefs inside out: Before washing, turn each pair inside out. This protects the outer fabric from friction against other garments and reduces pilling. Don't skip this step—it's the simplest way to keep the fabric smooth.
- 2. Wash on cold, gentle cycle with like colors: Set your machine to cold water and a gentle or delicate cycle. Wash with similar colors to avoid dye transfer. Use a mild liquid detergent; avoid bleach or fabric softeners, which can break down bamboo rayon fibers. Hot water or harsh cycles can cause shrinkage and fade the color.
- 3. Tumble dry on low heat: After washing, tumble dry on the low heat setting. High heat can damage the spandex and shrink the bamboo rayon. Remove the briefs while they're still slightly damp to reduce static and maintain softness. Never use high heat or iron the fabric—it can melt the fibers.
- 4. Lay flat to finish drying (optional): For extra care, lay the boxer briefs flat on a drying rack after the low tumble dry. This prevents any lingering moisture from stretching the waistband and helps the fabric keep its original fit. Skip the dryer entirely if you prefer—air drying is gentlest.
Product care facts
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Rayon Made From Bamboo Boxer Briefs (3-Pack): Pair of Thieves Rayon made from Bamboo underwear combines breezy ventilation, luxuriously soft fabric, and a refined fit. Care instructions: Machine wash cold. Gentle cycle with like colors. Tumble dry low. Do not iron. Following these exact settings prevents shrinkage and keeps the bamboo viscose fibers from weakening, so the boxer briefs stay comfortable wash after wash.
Rayon Made From Bamboo Boxer Briefs (3-Pack)



