Frontal view of model wearing the BIONIC STRIPES men’s flex boardshorts by the Bang! brand of men&
Back side view of male model wearing BIONIC STRIPES men&
Left side view of men’s BIONIC STRIPES trunks with color stripes, made by the Miami-based Bang! brand of men&
Infographic showing the flexibility of the shorts with a flat style at front and elastic back side.
Front view of a sexy male model wearing BANG Miami flex shorts Bionic Stripes series black blue yellow red 2021 lgbtq nation
Front view of a sexy male model wearing BANG Miami flex shorts Bionic Stripes series black blue yellow red 2021 lgbtq nation
Front view of a sexy male model wearing BANG Miami flex shorts Bionic Stripes series black blue yellow red 2021 lgbtq nation


Regular price $96.00 Sale price$48.00
Shipping calculated at checkout.

Clearance item sales are FINAL - No Returns/Exchanges.



Harder, better, stronger, faster. We have the technology. We can make him better than he was. Work it, make it, do it.

BANG! Flex Shorts offer maximum flexibility and responsiveness to adapt to any men's body form while maintaining great looks. Innovation in design: these men’s beachwear trunks are equipped with a Dual-Type “Hybrid Waistband” which merges a Flat Style section at front (with Hook-&-Loop closure), and an elasticated segment at the back side. This technical combination of two different waistband systems as an all-in-one option enables this bathing suit to adapt comfortably to the widest range of variations in waist sizes and adjusts to diverse men’s body shapes yet delivering a slick look with a perfect fit.

  • Contoured fit
  • Mid-length leg cut
  • Two pockets in front
  • Protective brief-shaped full liner inside
  • Engineered Printing
  • Water Repellent
  • Highest UV protection (UPF 50+) in swim trunks
  • Chlorine, salt & sun resistant
  • Sweat proof

- Ships Within 1 Business Day -

* * Which BANG! Shorts are best for me? Click Here to find out! * *

  • Low-rise cut for sexier masculine fit
  • Tapered sides from waist down for enhanced contoured fit
  • Quad-friendly mid-length leg cut with 5-inch inseam
  • Two pockets on front, equipped with water and sand resistant zippers, deep enough to fit even larger smartphones (or wallets, IDs, credit cards, keys, etc.)
  • An extra Velcro-strap pocket with flap on the back
  • Hook-&-Loop closure cord, with signature BANG! brand-engraved golden tips   
  • Drainage grommets
  • Exterior fabric: 90% Polyester and 10% four-way-stretch Spandex (Elastane) allows perfect contouring to the body and comfortable movement
  • Protective brief-shaped full liner inside made with superior-quality skin-soft, light, and comfy blend (90% Poly - 10% Spandex), fast drying, anti-bacterial treatment, odor protected
  • Velcro fly closure
  • Water repel: hydrophobic coating treatment that protects the fabric, preventing liquid absorption, avoiding stains like from colored drinks or liquids, and facilitating removal of dirt particles
  • Highest UV protection (UPF 50+) in swim trunks
  • Chlorine/Salt/Sun-resistant: Eco-friendly inks deliver colors that remain bright and vivid longer, and will not fade when exposed to chlorine and saltwater; or upon washing and exposure to sunlight
  • Sweat proof: Advanced technology that prevents fabric discoloration on contact with perspiration


Leg height for these Flex Shorts: Mid-Length

Inseam: about 4” (10 cm) to 6” (15 cm) from XS to 3XL

Note: for swimwear in general, the rule is that measures are stated mostly by reference of “regular-clothing waist size” (not actual body measures). Using the example on this table, if you usually wear 33” in jeans or pants, then a Large should be your size of reference for our beach shorts. 

Model is wearing size M.

Model measurements: 32" waist - 5' 9" Height.

Perfect fit guaranteed or your money back. We offer 30-day hassle-free returns or exchanges for your peace of mind.

   Machine wash cold on delicate cycle, or hand wash.

  Do not iron or dry in shade. Do not wring or scrub.

       Do not use chlorine-based whiteners. Do not use fabric softeners.

         Wash only with similar colors.

          Avoid contact with rough surfaces or sharp edges to prevent damage to the fabric.

      This is a Clearance item. Clearance item sales are FINAL, and not eligible for Returns or Exchanges. See our Returns Policy here.

      Click Here to find out!

      Customer Reviews
      4.9 Based on 15 Reviews
      5 ★
      4 ★
      3 ★
      2 ★
      1 ★
      86reviewers would recommend this product Write a Review Ask a Question

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      Filter Reviews:
      I recommend this product

      Best shorts ever

      These are so comfy and look so good!

      Jeffrey P.
      United States
      I recommend this product

      One of my fave pairs of shorts!

      Bought a size med. Super comfy and perfect fit while giving a stylish flare. Love them.

      Noel M.
      United States United States
      I recommend this product

      Bang on!

      These shorts were part of my first order with Bang, along with a tank and workout shorts. I’m thrilled at the consistently high quality. These shorts fit like a glove. I’ve already placed my second order and plan to order more in the future. Bang is now my go-to for all my lounge and fitness wear.

      Miguel T.
      United States United States
      I recommend this product

      sexy shorts

      Perfect fit and feel. So nicely made and get loads of compliments in them, no matter where I am!! Get a pair or two.

      kevin p.
      United States United States
      I recommend this product

      Not the design I was expecting

      The shorts look great, however the shorts can’t be pulled up very far due to the awkward design. If I don’t want to wear them as low riding shorts they absolutely crush my groin. Awkward fit for me and I am quite slim.

      Michael H.
      Australia Australia
      I recommend this product

      True to size

      These suits are not true to size.

      Juan M.
      United States United States
      I recommend this product

      Love it, very comfortable, and the colors are great

      Decio C.
      United States United States
      I recommend this product

      Perfect fit!

      Waiting to use it on my next trip to Argentina or Miami

      Steven B.
      United States United States
      I recommend this product

      Great quality, great fit

      Excellent fabric, great tailoring. I wish the inner lining was just a bit bigger to allow more room for my man parts. I ordered the XS. It fits great, but I think I could have gone one size up. I have a 28 size waist

      Aldanie M.
      United States United States
      I recommend this product

      Best swim trunks ever

      Best service I have had in a long time. Customer service answered my emails quickly, I would say within hours. Fantastic service.

      John D.
      United States United States
      I recommend this product

      Another great fit!

      These could become my go to trunks!

      Enrique S.
      United States United States
      I recommend this product

      Bionic Man Thanks to Bionic Stripes

      Okay, not really. BUT let me tell you why I am so pleased with my purchase. I purchased the flex shorts with the drawstring cord in the front and elastic in the back. I don't know what makes me allergic to elastic but I often develop a side effect whether it's a bathing suit or socks if it's heavy elastic. This is super light. Additionally, I almost felt ***** in a good way. I am so tired of too much fabric in a swimsuit. I'm short, to begin with at 5'6. I want to be able to swim comfortably and not be weighed down nor have a weird tan line. (Why swimsuits are longer than regular shorts will always baffle me.) These are short enough to be stylish and long enough to cover. I also bought the matching shirt. I was on a trip to a convention. My twin and I rented a cabana for a fun yet professional setting. This set allowed me to stay appropriate for the pool as well as the profession when I wanted to put the shirt on. My trip was in Vegas. I live in Florida. Staying in beach attire as well as in-door ready is always a must. The extra style is just extra fun and appropriate.

      Good T.
      United States United States

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