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WAVEFORM
WAVEFORM Bikini Brief

WAVEFORM Bikini Brief

4.4· 12 ratings

Best price now

$29.00at Rounderbum LLCObserved at 12:00 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the WAVEFORM Bikini Brief

The WAVEFORM Bikini Brief is a low-rise men's brief with a wave-patterned front panel that Rounderbum says adds the look of more volume and a more defined shape. The fabric is ultra-light and breathable with a second-skin feel, and the cut is deliberately small. At $29.00 at Rounderbum LLC as of November 4, 2026, it sits at the top of its recent range, with two stores pricing it new.

Best forMen who want a low-rise brief with a shaping effectWear under slim or fitted clothingWarm-weather everyday wearBuyers who prefer a minimal, small cut
Pros
  • Low-rise cut stays below the waistband
  • Wave panel gives a fuller, more defined front
  • Ultra-light, breathable fabric
  • Second-skin feel with no bulk
  • Sizes S through 2XL, waist 28–43 in
Cons
  • Small cut won't suit everyone
  • Photos read like swimwear but it is underwear
  • Only 12 ratings so far
  • At $29 it is priced at the top of its range

WAVEFORM Bikini Brief prices at every store

  • Rounderbum LLCNew

    In stockReturn policy

    $29.00Observed at 12:00 PM
    Visit store
  • Macy'sNew

    In stock

    $29.00+ $10.95 shippingObserved at 10:54 AM
    Visit store

Also available at

  • RounderbumCheck price at Rounderbum

WAVEFORM Bikini Brief price history

Lowest price we've seen: $29.00 on Nov 4 at Rounderbum. Tracked across 2 stores since Nov 4.

What reviewers say

Owners rate it 4.4 out of 5 across 12 ratings and mostly talk about comfort and fit. The most common complaint is that it looks like swimwear in photos but clearly is not in person.

Pros
  • Super comfy fabric
  • Great fit
  • Very comfortable, true to size
  • Cute design
Cons
  • Looks like swimwear in photos but is not

From Rounderbum LLC

  • Low-rise bikini cut
  • Waves create the illusion of more volume and a more defined shape
  • Weightless comfort that feels like wearing nothing at all
  • Second-skin feeling
  • Ultra-light, breathable fabric
  • Breathable super soft fabric
Sizes
S, M, L, XL
Materials
95% Cotton 5% Elastane
Sizing
Underwear fits true to size and is fitted; size up if you prefer a more relaxed fit.
Care
Wash clothes separately. Use detergent for hand wash or 30 degrees machine wash. Do not use bleach or fabric softener. Do not squeeze; dry hanging in the shade
Size chart
SizeWaist (in)Waist (cm)
S28-3071-76
M31-3479-86
L34-3786-94
XL37-4094-102
2XL40-43102-109
3XL43-45109-114

About the WAVEFORM Bikini Brief

Waveform turns movement into art for your body. This low-rise, ultra-sexy summer bikini blends waves that create the illusion of more volume and a more defined shape, with a weightless comfort that feels like wearing nothing at all.

FEATURES

• Low-rise bikini

• Volume and defined shape

• Weightless comfort

What buyers say

Buyers like
  • Super comfy fabric
  • Great fit
  • Fits very well with a smaller cut
  • Looks great on and off
  • Very comfortable, perfect size
  • Cute design
Buyers complain about
  • Looks like swimwear in photos but clearly is not once seen in person

Specifications

Rise
Low-riseSource
Style
BikiniSource
Fabric feel
Second-skin feelingSource
Fabric weight
Ultra-light, breathable fabricSource

Questions and answers

Is the WAVEFORM Bikini Brief worth $29?
It is a shaping brief with a low-rise cut and light fabric, and $29 is the top of its recent range. If you want the wave-panel effect, it is the only way to get it; if you just want basic briefs, cheaper options exist.
How does it fit compared with regular briefs?
It runs to a small, low-rise cut, and buyers describe it as fitting well with a smaller cut. Check the waist chart: S is 28–30 in, M 31–34 in, L 34–37 in, XL 37–40 in, 2XL 40–43 in.
Is it underwear or swimwear?
It is underwear. Buyers note it looks like swimwear in photos but clearly is not once seen in person, so do not wear it in the water.
What is the fabric like?
It is ultra-light and breathable with a second-skin feel. The brand describes the comfort as weightless, close to wearing nothing.
When is the best time to buy it?
The best new price was $29.00 at Rounderbum LLC as of November 4, 2026, with two stores pricing it new. Compare both stores before buying, since the spread between them is the main saving.
Where is the WAVEFORM Bikini Brief cheapest?
At Rounderbum LLC, for $29.00, as of our latest check.
What do buyers say about the WAVEFORM Bikini Brief?
Rated 4.4 out of 5 from 12 ratings. Buyers like: Super comfy fabric; Great fit; Fits very well with a smaller cut. Common complaints: Looks like swimwear in photos but clearly is not once seen in person.
Where can I buy the WAVEFORM Bikini Brief?
3 stores we checked sell it, including Rounderbum LLC, Macy's, Rounderbum.

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Buying guides that pick the WAVEFORM Bikini Brief

  • Best men's bikini briefs underwear
  • Best men's bikini briefs for everyday wear
Fabric softness
Breathable super soft fabricSource
Fit
Sleeker fit, softer feel, smarter fabricSource
Waist size S
28-30 IN / 71-76 CMSource
Waist size M
31-34 IN / 79-86 CMSource
Waist size L
34-37 IN / 86-94 CMSource
Waist size XL
37-40 IN / 94-102 CMSource
Waist size 2XL
40-43 IN / 102-109 CMSource