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Runderwear Men's Long Boxer Briefs (7.5" inch) - Chafe-Free Running Underwear
Runderwear Men's Long Boxer Briefs (7.5" inch) - Chafe-Free Running Underwear
  • Chafe-Free - multi-award winning running underwear designed to prevent chafing and provide comfort
  • Seamless Technology - designed using 360° seamless technology means no tags or side seams
  • Moisture-Wicking - lightweight, technical fabric removes sweat from your skin quickly to keep you dry
  • Breathable Fabric - carefully positioned micro-perforations increase airflow and core temperature control
  • Ultimate Comfort - super-soft fabric moves with your body as you move thanks to 4-way stretching
Runderwear Logo Blue Gradient

Runderwear Men's Long Boxers

Runderwear Men's Long Boxers - Black, Model

Runderwear Men's Long Boxers - Navy, model

Runderwear Men's Long Boxers - Blue, model

The Runderwear Men's Long Boxer Shorts are designed for runners, by runners. With a 7.5" inch inseam, they offer extra protection down the thighs - along with silicone leg grippers to hold them in place during movement. The soft, elasticated waistband provides comfortable support and combines with our technical fabric to keep you chafe-free, mile after mile.

Available in sizes -

  • Small (30" - 32" waist)
  • Medium (32" - 34" waist)
  • Large (34" - 36" waist)
  • X-Large (36" - 38" waist)
  • XX-Large (38" - 40" waist)

Available in colours - Black | Navy | Blue

Product care -

  • Warm machine wash up to 40°
  • Wash with similar colours
  • Do not tumble dry
  • Do not soak, bleach or dry clean

Fabric Composition - 92% Polyamide, 8% Elastane

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Key Features

Runderwear Chafe-Free Icon

Runderwear Seamless Technology Icon

Runderwear Moisture-Wicking Icon

Runderwear Breathable Fabric Icon

Run in the ultimate comfort - Runderwear will keep you chafe-free, mile after mile

360° construction means no side seams or tags to significantly reduce skin irritation

Lightweight technical fabric removes sweat from skin efficiently to keep you dry

Carefully positioned micro-perforations increase airflow & optimise core temperature

Read more Runderwear Awards Graphic
Runderwear Men's Running Briefs - comparison Runderwear Men's Running Boxers - comparison Runderwear Men's Running Long Boxers - comparison Runderwear Men's Merino Running Briefs - comparison Runderwear Men's Merino Running Boxers - comparison
Runderwear Men's Briefs Runderwear Men's Boxers Runderwear Men's Long Boxers Runderwear Men's Merino Briefs Runderwear Men's Merino Boxers
Seamless Technology
Breathable Fabric
Silicone Leg Grippers
Length of Inseam 5" inches 7.5" inches 6" inches
Fabric Composition 92% Polyamide, 8% Elastane 92% Polyamide, 8% Elastane 92% Polyamide, 8% Elastane 45% Merino Wool, 40% Poyester Thermocool, 10% Polyamide, 5% Elastane 45% Merino Wool, 40% Poyester Thermocool, 10% Polyamide, 5% Elastane
Premium Merino
  • Is Discontinued By Manufacturer: No
  • Package Dimensions: 9.09 x 4.69 x 0.98 inches
  • Date First Available: July 4, 2017
  • Amazon Best Sellers Rank: #413,827 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry)
    • #1579 in Men's Boxer Briefs
    • #128830 in Men's Shops

    Perfect! I like to run, but I have thick thighs. I need reliable underwear that can hold up and provide the protection (and support) I require. If you are a little skinny gurly man that does not worry about such things, then move on. If you have some girth about you, then check out this product. Just purchased my second pair. I highly recommend.

    I bought these based on the description as there was no reviews, and nothing that fit the criteria I was searching for. The primary selling point was "Seamless Technology" which is a boldface lie, there are 2 seams, both runing from the back of the leg through the crotch area and to the front of the leg.
    two stars for now, maybe it will climb based on fit, and wear...maybe

    good product

    They look like they won't fit, but they do. I had tried the trunks and like the long boxers better. They feel good on you legs and don't ride up, will definitely get another pair. Wish there were some options of colors.

    Stays in place when running and is not bulky at all. Fits as described

    Great for running.

    No seems! Finally! And the rubber silicon around the leg tape keeps the shorts in place. Great running shorts!

    Supportive but not restrictive. No chafing. Excellent comfort.

    I’ve bought this long boxer shorts (medium size) for my MMA training, I needed something where the seams or construction of the shorts doesn’t cause any chafing when you’re doing a lot of ground work and kicks; this item fits the bill. The seams of this boxer short is very smooth and soft, and the construction of the material is great (e.g. elasticity, general fitting around the thighs). There’s a glued seam just at the bottom of the shorts, this stops the lower material from rolling up on the thighs. I thought this was really nice feature to have.

    I also noticed that this boxer short doesn’t retain as much sweat in comparison to other long boxer shorts I have. I definitely would recommend buying this product if you’re doing a no-gi grappling, wrestling or MMA training.

    Runderwear are a revelation. They really do work. I use the short ones under my cycling shorts and these long boxers under my running shorts. No more chafing from either!. I've used lycra shorts in the past but they are sweaty and still chafe at the seams so tried these and won't go back to lycra.

    Bought these for my husband who is currently training for a marathon. He says they are incredibly comfortable, but they do seem to be wearing quite quickly. Have bought another 2 pairs to rotate and hopefully slow down the wear on each pair.
    Not 5 stars as these are expensive.

    It might be expensive but it is really worth having it. I do not have any chafing problems. It covers your legs and does not move. I used it during my marathon and there was no problem at all. I recommend everyone to buy it without any hesitation.

    Fantastic product that completely negates any chaffing. Can't recommend them highly enough, and I certainly wouldn't run without them any more.
    Even during the long, hot summer I wore these on every training run for a recent half marathon. They are ideal for all weather conditions - hot, cold, dry or wet.
    Also like the strapline 'Don't run Commando'!

    After a couple of years of some bad chafing issues whilst doing anything from10k runs to full marathons, I was advised that cycling shorts would probably help. Having a look on Amazon, I came across these, and gave them the benefit of the doubt. I just finished a half marathon yesterday in baking heat, and despite them being soaked through, all my parts remained completely chafe free, and for once I made it across the finish line pain free. You can not go wrong with these at all! Highly recommend!

    After having these for two months They chafe me like crazy. Not worth the price tag. Will go and find something cheaper. If I am going to chafe I would rather do it for less money spent on some other shorts.

    Really does work. Cycling and walking without chafing. Expensive but worth it. I would recommend the shorter leg boxers for cycling.

    these boxer shorts are great, they fit well and do exactly what they say, used them this weekend for trail marathon and had no chaffing and even though was a hot day was comfortable throught, more expensive than other brands but for the comfort they give on longs run they are easily worth it

    Really comfortable and look good. No issues with chafing with these on. Only issue I’ve noticed is the fabric seems to collect fluff from the insides of my running shorts/other clothes. Very minor issue though, can’t fault the performance or fit.

    Amazing- husband loves these for exercise

    These are comfortable & great quality.

    Ran Manchester Marathon in these and were brilliant, so comfortable

    Really love them, they work perfectly and I wore them for a 21 mile hike with no issues

    Really light and well fitted. Just ran 13miles in the new pants and comfortable from beginning to end.