How to Wash Men's Underwear So Colors and Prints Last Longer
By JOR Underwear - Premium Men's Underwear Boutique | Published: 2026-10-16
Category: Tips en onderhoud
A simple cold-water routine that keeps trunks and thongs looking new: sort, wash inside out, skip the dryer, and air dry prints in the shade.
Quick answer
Wash men's underwear in cold water on a gentle cycle, turned inside out, with a small amount of mild liquid detergent. Skip chlorine bleach and fabric softener, then air dry prints and dark colors in the shade. Heat and abrasion are what fade prints, so the dryer is the main thing to avoid.
Why prints fade before the fabric wears out
Print fading is usually a surface problem, not a fiber problem. Dye sits on or just under the surface of the fabric, so anything that scrubs or heats that surface removes color faster than normal wear. Hot water opens the fibers, bleach attacks the dye directly, and a hot dryer cycle bakes in both damage and shrinkage. The elastic waistband and side straps on a thong are also heat-sensitive, which is why the same habits that protect prints also protect fit.
Sort by color and fabric weight, not just by type
Keep dark and bright printed pieces away from white and light items, even on a cold cycle, because dye transfer still happens in cool water. Separate heavy cotton trunks from lightweight thongs and stretch blends so the gentler items are not tumbled against zippers, hooks, or heavy seams. If you wash underwear with towels or jeans, put the underwear in a mesh bag first; that single step prevents most of the pilling and print scuffing that comes from friction.
Choose detergent and water temperature deliberately
A mild liquid detergent dissolves fully in cold water and rinses clean, which matters for fabric that sits against skin all day. Powder detergent can leave residue in stretch blends, and fabric softener coats fibers and traps odor. Use the smallest amount that gets the job done; more soap does not mean cleaner underwear, and excess detergent is one of the most common causes of lingering smell.
Dry prints the slow way
Air drying is the single biggest factor in how long a print stays sharp. Lay pieces flat or hang them in the shade; direct sun fades prints and weakens elastic over time. If you must use a machine, choose the lowest heat setting and remove items while slightly damp, then finish them on a rack. Never dry a thong or a printed trunk on high heat.
The six-step wash routine
- 1. Turn every piece inside out: Pull trunks and thongs inside out so the printed or colored surface faces inward and rubs against itself rather than against zippers, buttons, or other garments. Checkpoint: the waistband label should be facing out.
- 2. Sort into two piles: Separate dark and bright prints from whites, and keep lightweight thongs away from heavy cotton trunks and towels. Mistake to avoid: tossing one bold printed thong in with white undershirts.
- 3. Use cold water and a gentle cycle: Set the machine to cold and choose the delicate or gentle cycle. If you hand wash, use cool water and squeeze rather than scrub. Checkpoint: water should feel cool, never warm, to the touch.
- 4. Add a small amount of mild liquid detergent: Use less than the cap suggests for a small load. Skip chlorine bleach, oxygen bleach on prints, and fabric softener entirely. Mistake to avoid: pouring detergent directly onto the fabric.
- 5. Skip the spin cycle or keep it short: A long, high-speed spin twists waistbands and side straps. If your machine allows it, choose a low spin speed or remove items before the final spin. Checkpoint: straps should not be stretched or knotted when the cycle ends.
- 6. Air dry in the shade: Lay flat or hang printed pieces and thongs away from direct sun. If you use a dryer, choose the lowest heat and pull items out slightly damp. Mistake to avoid: drying a printed thong on high heat, which fades the print and weakens the elastic.
Product care notes from our catalog
- Pikante Men's Underwear PIK 26089 Sleek Thot Trunks Color Gray: Pikante PIK 26089 Thot Trunks are made in Colombia from a premium blend of USA and Colombian fabrics with a low-rise, body-hugging cut. The low-rise waistband sits close to skin and is the first part to lose stretch, so keep these out of the dryer and wash them inside out to protect the band and the gray finish.
- Mundo Unico Men's Underwear 22120100105 Cristalino M22 Trunks Color 00-White: Mundo Unico Cristalino M22 Trunks use 88% polyamide and 12% elastane, handmade in Colombia with a seamed pouch for support. Polyamide and elastane respond badly to heat, so cold water and air drying protect both the white color and the stretch that keeps the seamed pouch supportive.
- CandyMan Men's Underwear 99875 Chili pepper Thongs Color Black Print: CandyMan 99875 Chili Pepper Thongs are hand made in Colombia with a printed pouch and lightweight fabric. The printed pouch is the most visible part of the garment, so turn it inside out before washing and dry it in the shade to keep the print from dulling.
