How Often Should Men Replace Their Underwear? The Ultimate Guide

Let’s be honest: when was the last time you actually replaced your underwear rotation? If you had to think about it… it’s probably been too long. While most will happily splash out on new trainers or gadgets, underwear tends to get overlooked. But, here’s the thing, your underwear is the foundation of comfort, hygiene, and confidence, and should be invested in accordingly. 

So, how often should men really replace their underwear? Let’s break it down.

The Golden Rule: Every 6-10 Months

You may have heard the old adage of replacing your underwear once ever 6 to 10 months, But just how true is that? 

Well… very!

Even high-quality underwear eventually loses its shape and freshness after about 50 washes. Fabrics stretch, waistbands slacken, and the fibres that once kept everything supported begin to wear down.

That comfy pair of boxers that’s been through hundreds of wash cycles might feel like an old friend, but the reality is, it isn’t doing you - or anyone else -  any favours anymore.

Think of underwear like tyres on a car: they still work when they’re worn, but not as effectively as they should. Simply put, the fresher your underwear, the better your performance.

Sweat, Sport, and Extra Wear = Sooner Swaps

If you’re hitting the gym regularly, commuting in the heat, or just living an active lifestyle, you’ll need to replace your underwear more often. Sweat, friction, and bacteria will speed up the rate of wear and tear. If this is the case for you, aim to replace your underwear every 3–4 months to keep your underwear drawer fresh and supportive.

Pro tip: stock up on breathable, moisture-wicking pairs, like Boxeroo’s 801 active boxers. Due to their fabric composition, they have a longer lifespan, meaning you won’t have to restock your underwear drawer as frequently. 

Five Signs It’s Time to Say Goodbye

Don’t wait for your underwear to completely fall apart before you consider a replacement.  it. If you notice any of these signs, it’s time to move on:

1. Stretched-out waistbands that won’t stay put.

2. Holes, thinning fabric, or fraying seams.

3. Persistent odours that won’t wash out.

4. Faded colours that look more “washed-up” than they do just washed.

5. Loss of support.

Sound familiar? Then it’s time for an upgrade.

Daily Hygiene Still Rules Supreme

Replacing your underwear is all well and good , but let’s get real about the basics: change your underwear daily. Every. Single. Day. No excuses. Wearing the same pair for multiple days can lead to irritation, odour, and even fungal infections. Keep your hygiene, and your confidence, intact with a clean rotation.

Why Regular Replacement Matters

Still tempted to hold onto those worn-out pairs? Here’s why replacing your underwear regularly makes all the difference:

• Hygiene: Old underwear harbours harmful bacteria, even after washing.
  
  

• Comfort: A fresh waistband makes your day more comfortable.
  
  

• Confidence: Wearing underwear that looks and feels good boosts self-esteem.
  
  

• Style: Let’s face it, nobody wants to be caught in hole-filled, saggy boxers.
  
  

Your underwear sets the tone for the day. If it’s not working for you, it’s working against you.

FAQs: Underwear Replacement Questions, Answered

1. How many pairs of underwear should a man own?

A good rule of thumb is to have at least 12–15 pairs of underwear at any point in time.  This means you can rotate through them easily and always have a clean pair ready. You’ll need more if you work out frequently.

2. Can I keep underwear for years if it still looks okay?

Not really. Even if it looks fine, the fibres weaken over time, reducing support and hygiene. Six to ten months is the safe window.

3. How can I make my underwear last longer?

Wash in cold water, avoid high-heat drying, and rotate your pairs evenly. But remember: no underwear lasts forever.

Time for an Upgrade?

If your drawer is full of stretched, faded, or hole-filled pairs, it’s time for a refresh. At Boxeroo, we’ve designed underwear that not only looks good but also works for you. With our RooPouch™ support and premium-quality fabrics, such as Tencel Lyocell, you’ll stay comfortable, confident, and fresh day in, day out. ®

It’s time for an upgrade, out with the old, in with the Roo.