Quick answer
Choose your usual HOM size first, then put the briefs on before your socks and trousers so the legs sit flat. Wash them inside out in cold water on a gentle cycle and air-dry them away from direct heat. This keeps the black fabric looking sharp and the waistband supportive for sports and active days.
Sports Lab Boxer Briefs | Black 402807-0004 are designed to move with you, but how you size, wear, and care for them decides whether they feel supportive all day or start to ride up and lose shape. This guide walks through the practical steps, from checking the fit to washing and drying without dulling the black finish.
Sports Lab Boxer Briefs | Black 402807-0004
You do not need special products or a complicated routine. A few consistent habits protect the fabric, the waistband, and the leg finish, which is what keeps a pair of black boxer briefs looking and feeling good after repeated wear. Follow the steps below in order and adjust only where your own comfort clearly tells you to.
Why fit matters before anything else
A boxer brief only works if the waistband sits flat and the legs stay put. If the waistband rolls or digs in, the briefs will shift during movement and you will spend the day adjusting them. If the legs are too loose, they ride up; too tight, and they pinch. Getting the size right is the single biggest factor in comfort, and it is easier to judge before you commit to a full day of wear.
HOM sizes are consistent across the underwear range, so start with the size you normally wear in HOM trunks or boxer briefs. If you are between sizes and plan to use these mainly for sport, choose the larger size for freedom of movement. If you want a closer, more supportive feel under slim trousers, choose the smaller size only if your usual size feels loose at the waist.
- Check the waistband first: it should sit level all the way around without folding over.
- The leg hem should touch your skin lightly, not squeeze it or gap away.
How to put them on for all-day comfort
Put your boxer briefs on before your socks and trousers. This sounds obvious, but it prevents the leg hems from catching on socks or trouser legs and rolling up. Step into both legs, then pull the briefs up evenly on both sides rather than yanking one side at a time. This keeps the waistband from twisting and helps the front pouch sit in the right place.
Once they are on, run a finger along the inside of each leg hem to smooth any fold. If you are dressing for sport, do this before you put on shorts or joggers so the fabric lies flat against the skin. A flat hem is less likely to rub during repeated movement, and it also keeps the black fabric from creasing in odd places.
- Dress in this order: boxer briefs, socks, trousers or shorts.
- Smooth the leg hems with your fingers before adding outer layers.
Washing black boxer briefs without fading them
Turn the briefs inside out before washing. This protects the outer surface from friction against other garments, which is what causes black fabric to look dull over time. Use cold water on a gentle or delicate cycle with a mild detergent. Hot water and harsh detergents break down elastane, and elastane is what gives the waistband and leg openings their stretch and recovery.
Wash them with similar colors, especially other dark items, and avoid overloading the machine. If you use a mesh laundry bag, it adds another layer of protection for the waistband and prevents the briefs from wrapping around other clothes. Skip fabric softener, because it coats the fibers and reduces the stretchiness of the elastane over time.
- Cold water, gentle cycle, mild detergent, similar colors.
- No fabric softener and no bleach, even on black.
Drying and storing to keep the shape
Air-dry your boxer briefs whenever you can. Lay them flat or hang them by the waistband, away from direct sunlight and radiators. High heat is the main enemy of elastane, so a tumble dryer on a hot setting will shorten the life of the waistband and leg openings. If you must use a dryer, choose the lowest heat setting and remove the briefs while they are still slightly damp.
Store them folded in a drawer rather than hanging them by the waistband for long periods. Hanging stretches the elastic over time, which is exactly the part you want to keep snug. Folding also keeps the black fabric from picking up dust or creases, so the briefs look presentable when you pull them out for a workout or a long day.
- Air-dry flat or hang by the waistband, out of direct sun.
- Fold for storage; do not hang by the elastic long-term.
When to replace your boxer briefs
Even with good care, boxer briefs do not last forever. Replace them when the waistband stops snapping back, when the leg hems stay stretched out, or when the fabric feels thin and see-through in daylight. For sport use, pay attention to the waistband first, because a loose waistband means the briefs will move around during activity and stop doing their job.
If you rotate several pairs and wash them gently, you will get more wear out of each one. Keep a separate set for sport if you train often, so your everyday pairs are not exposed to repeated sweat and heavy washing. That simple split keeps both sets in better condition for longer.
- Replace when the waistband loses snap or the fabric thins.
- Rotate pairs and keep a separate set for training if you can.
Your step-by-step routine for Sports Lab Boxer Briefs
- Check the size against your usual HOM fit: Try on the briefs before washing them. The waistband should sit flat and level, and the leg hems should touch your skin without pinching or gaping. If you are between sizes for sport, size up for freedom of movement. If the waistband rolls or the legs gap, try a different size before you commit to wearing them.
- Put them on before socks and trousers: Step in evenly and pull up both sides at once. Smooth each leg hem with a finger so the fabric lies flat. This order stops the hems from catching on socks or trouser legs and rolling up. Checkpoint: no twisted waistband and no folded leg hems before you add outer layers.
- Wash inside out in cold water: Use a gentle cycle, mild detergent, and similar dark colors. Skip fabric softener and bleach. A mesh laundry bag protects the waistband and keeps the briefs from tangling with other clothes. Cold water and gentle action are what preserve the elastane and the black finish.
- Air-dry away from heat and direct sun: Lay flat or hang by the waistband. If you use a dryer, choose the lowest heat and take them out slightly damp. High heat is what shortens the life of the elastic. Checkpoint: the waistband should still snap back when the briefs are fully dry.
- Fold for storage and rotate pairs: Store folded rather than hanging by the elastic. Rotate several pairs and keep a separate set for sport if you train often. Replace any pair whose waistband has lost its snap or whose fabric has thinned. A simple rotation keeps every pair in better condition and makes replacement timing obvious.
Product facts that affect fit and care
- Amour Boxer Briefs | Black Print 402507-I004: Made of polyamide elastane microfiber with a print designed by expressionist artist Christopher Lecoutre, featuring love-themed motifs on a black background. Polyamide elastane microfiber is smooth and quick to dry, so it responds well to the same cold-wash, air-dry routine you use for black boxer briefs. The black background also means you can wash it with other dark items without worrying about color transfer.
- Monsieur Boxer Briefs | Black/White Stripes 403251-R04W: Combines modal and polyester in a soft, breathable fabric with front pouch elastics for anatomical support and stretch leg finishes to help prevent ride-up. The stretch leg finish is the feature that keeps boxer briefs from riding up during movement, so it is worth checking that this area stays flat when you dress. Modal and polyester also hold their appearance over time, which makes gentle washing and air-drying worthwhile.
Treat your Sports Lab Boxer Briefs like any good piece of activewear: get the size right, put them on smoothly, wash them cold, and dry them gently. Those habits take a few extra seconds and keep the black fabric, the waistband, and the leg finish working the way they should, whether you are training or just getting through a long day.





