







🔥 Step Into Invisible Comfort & Confidence
STEP ONE Men's Underwear Trunk Briefs deliver next-level comfort with ultra-breathable, moisture-wicking bamboo viscose fabric and a 3D pouch that ensures perfect support. Designed in Australia with ethical, organic materials, these trunks prevent ride-up and chafing thanks to innovative Ultraglyde panel technology. Ideal for active professionals seeking durable, stylish underwear that keeps you cool, fresh, and confident all day long.

















| ASIN | B0B457ZNKY |
| Best Sellers Rank | 3,775 in Fashion ( See Top 100 in Fashion ) 17 in Men's Underwear Trunks |
| Customer reviews | 4.5 4.5 out of 5 stars (2,702) |
| Date First Available | 15 Jun. 2022 |
| Department | Men's |
| Manufacturer | Step One |
| Package Dimensions | 18 x 16 x 0.4 cm; 75 g |
N**N
Good quality, most comfy underwear ive ever had.
Bought this single xl pair to try for size as had previously bought just large multi pack and felt the waist band was a bit too tight and compressing my stomach too much, especially when sitting. These seem to be the perfect fit now.
J**E
Best underwear brand!
Fab underwear - comfortable and durable.
M**.
Comfortable
Fantastic fit, feels great, breathable and stretchy, one of the best pair of boxers I own, definitely will be buying more pairs, girlfriend loves the look and feel of these so a win win
A**R
"Great Quality, Breathable, and Perfect Fit for Big and Tall"
I'm really impressed with these STEP ONE Men’s Trunks. They’re extremely comfortable, with a breathable material that keeps your boys cool all day. As a larger guy (6'5", 2XL), I often have trouble finding boxers that fit well, but these are spot on! They offer the right amount of stretch and support without feeling too tight. Overall, great quality and a perfect fit for anyone looking for comfort and durability. Highly recommend for fellow tall guys looking for reliable, comfortable underwear.
G**Y
Fit well
Fit well and are comfy
T**N
Juicy Plums are fun
My other half Cycles to work every day, 5 days a week and needs to have extra support as he gets Varicous veins and this can cause significant discomfort. So hes been having to wear briefs for years since his diagnosis. So when I heard about Boxer Briefs being a thing (dont judge me, I just thought they were fancy boxers) I decided to have a good look around and find a decent brand that would support him and stop the rubbing that comes with the stresses of cycling daily. After scouring the many, many listings on Amazon, I find the Step One brand of boxer briefs. They look alright and after looking into the description and reviews, seemed to suggest that they would be good for my other half and his specific needs. Now I was on the fence when I looked at the price. I honestly almost left it there at that point, not wanting to effectively waste a considerable amount of money on one pair of these things (I could buy multi-packs in supermarkets for less probably). There was the added risk of my particularly picky Fiancé who is not the easiest to convince to try something new. But, then I read that the company will accept a return on your first purchased pair if you are not happy with them, even if you have worn them! So I take the plunge and buy a pair, which are named Juicy Plums (giggles all round from me, I know I am an immature woman) and after they arrive I present them to HRH letting him know that he should at least try them because he has nothing to lose and that I’ll be able to get my money back if he doesn’t like them. He smirks at them but gives them a try. “They’re comfortable” he says. Good sign, but hes not ridden in them yet, so I tell him to give them a wear while cycling and so he does. Long story short: I have since brought 5 more pairs for him as he likes them so much and may have to consider throwing a lot of old briefs away. As a side note, you can wash these at 30 in your machine and can tumble dry them too. So far I haven’t seen any shrinkage or damage from any of the pairs I have brought.
M**S
Comfortable
Great quality and very comfortable
F**Y
Waistband tighter than expected
Very ordinary trunks and nothing special about them. Waistband is NOT very lightweight at all and they are tagged at rear. Obviously paid Amazon hefty fees to get pushed to top of lists. Way overpriced! £10 each or 3 for £25 should be price point. Not uncomfortable but definitely sized small imo.
A**H
The STEP ONE Men's Boxer Shorts are hands down the best boxers I’ve ever worn! From the moment I put them on, they felt incredibly lightweight—almost like wearing nothing at all. The material is super soft, stretchy, and breathable, making them ideal for all-day comfort. One of the biggest highlights is the moisture-wicking ability. They stay dry, absorb sweat efficiently, and prevent chafing, which is a game-changer, especially in warm weather or during workouts. No uncomfortable dampness, no riding up—just a perfect fit that stays in place. The quality is top-notch, and you can tell these are built to last. Whether for daily wear, sports, or lounging, these boxers are simply perfect. If you want ultimate comfort and breathability, look no further. Easily 5/5!
L**S
Step One underwear are light and very comfortable. They are true to their word when they say the underwear wicks moisture away. You don't even notice you are wearing underwear. That's how comfortable they are. I highly recommend them.
B**I
Good quality one of only products on Amazon not from Temu
J**T
I purchased these and a medium, and they fit true to size. I wish they had a quick fly when using the restroom. I have to literally take my pants down. They fit like a glove though and I love them. 😍 if they came out with a fly, I would probably try them.
N**S
I hesitate to write many reviews on Amazon as most products are adequately scaled by the average of those left by others; this is not the case here. Buyer beware. I've heard about the Step One dominance for a long time - a perfect set for the kit that will keep the boys snug, avoid chaffing, and last for at least as long as their competitors. That last sell seems to now be entirely untrue. Yes - these are fantastic equipment in terms of function, at least for the first 7 wears and washes. I do not jest when I say I have worn these ONLY 7 times and washed them on a COLD CYCLE ONLY 7 TIMES and the posterior has already torn. This is in no way due to poor fitment or stretch - they were wonderful when working. But here we are; another day, another disappointment. Perhaps Step One can step up and take accountability for atrocious longevity that is beaten out by Kmart's Alpha brand, Bonds, Calvin Klein and the like, all of which I regularly wear and wash which have not suffered such damage until at least the 1.5-2 year mark of regular use. Two things are true here: i) these are the most comfortable and useful underwear I have worn, while they met their intended purpose; ii) do not purchase this atrocious product if you plan on wearing them for more than a few functions. Truly unacceptable. How hard is it to make a set of underwear. At this price, you're better off with quite literally any other premium brand.
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