# Arena Men’s Dynamo R Swim Brief, 5.5 cm

Arena Dynamo R swim briefs combine a 4-way-stretch recycled-polyamide fabric with an adjustable internal drawstring and soft front lining. The listing gives two different side lengths, so confirm which cut applies to the selected item before buying.

- [Original product page](https://aussiedealscout.com/product/arena-mens-dynamo-r-swim-brief-5-5cm)
- [View offer](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- Market: AU
- Language: en-AU
- Currency: AUD
- Brand: arena
- Model: 006491
- Category: Fashion & Accessories > Clothing > Swimwear
- Price: 21.88 AUD
- Previous price: 30.73 AUD
- Discount: 29%
- Price checked: 2026-11-13T11:56:37.946Z
- Rating: 4.4 / 5
- Reviews: 273

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The manufacturer describes MaxFit Eco as a stretchy, recycled-polyamide fabric intended for pool, beach and other water use.
- An internal drawstring lets the wearer adjust the fit, and a soft front lining is specified.
- Fabric is listed with integrated UPF 50+ UV protection and chlorine and saltwater resistance.

## Pros

- The drawstring allows fit adjustment, while the four-way stretch is intended to support movement in the water.
- The listed recycled-polyamide fabric combines chlorine and saltwater resistance with integrated UPF 50+ protection.

## Specifications

### Identity
- Brand: Arena
- Model: 006491
- Department: Men's
### Fabric and fit
- Fabric: MaxFit Eco
- Fabric composition: recycled polyamide
- Stretch: 4-way stretch
- Side length in description: 7 cm
- Adjustable waist: adjustable internal drawstring
- Lining: soft front lining
### Protection and resistance
- UV protection: UPF 50+
- Water resistance claim: Chlorine and saltwater-resistant

## Before you buy

- The title states a 5.5 cm brief, while the description specifies a 7 cm side length. These listing details are inconsistent, so confirm the cut for the selected item. Customer feedback also reports mixed fit and comfort, with some finding the front tight and sizing small.

## A good fit for

- Swimmers seeking a brief with an adjustable internal drawstring and soft front lining.
- Pool or beach users who want the listed stretch fabric and UPF 50+ protection.

## Less suited to

- Buyers who need a confirmed side length or a predictably generous fit without checking the listing and size guidance.

## Customer feedback

Customer feedback describes the briefs as good quality and attractive, but reports mixed fit and comfort. Some find the front tight, and sizing is said to run small. That matters for a close-fitting brief, especially since the listed side length is inconsistent. The aggregate ratings are generally positive but include a range of opinions, and ratings alone do not explain why customers responded as they did.
- Positive themes: Customers report good quality and like the design.
- Negative themes: Some customers say the sizing runs small.
- Mixed feedback: Fit opinions vary, including reports of tightness at the front.
- Mixed feedback: Comfort feedback is divided.

## Frequently asked questions

### What side length does the brief have?
The title specifies 5.5 cm, while the description says 7 cm. Confirm the selected listing's measurement before buying.
### What fabric and protection are listed?
The description names MaxFit Eco recycled-polyamide fabric with four-way stretch, chlorine and saltwater resistance, and integrated UPF 50+ protection.
### How is the fit adjusted?
An adjustable internal drawstring is listed. Customer feedback on fit and comfort is mixed, and some customers say the sizing runs small.

## Alternative options

- [Speedo Men's Solar Brief \| Summer Style \| Beach Wear \| 5cm](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- [Speedo Men's Endurance+ 7cm Brief](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- [Speedo Men's Endurance+ 5cm Brief](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- [Speedo Men's Classic Logo Brief](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- [Arena Dynamo R Men's Swimsuit, Quick-Drying Swimsuit, Chlorine and Salt Resistant Maxfit Fabric, UPF 50+ UV Protection](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)
- [Rip Curl Men's Corp Sluggo Brief](https://aussiedealscout.com/visit/arena-mens-dynamo-r-swim-brief-5-5cm)

## Images

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 1](https://aussiedealscout.com/i/HKbJ-nJc1RrQ8nCX5U3r1pPdTK7k5vTs0pXNhHOkLcF-FAbgbM85_wP_s-I3bkumyY_Tc8r5x37mRJulsVATziyTDzvRPcmK5KVpAWdPbeNR6T5u0qJMwaIU.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 2](https://aussiedealscout.com/i/V640A4FKY6LIzwxTw7VpIc3Neg0pPhQIG7BSv9x51KwMLRILbmMmCGnYO1gFXuFoqi_Fw4PuakJtqkIHRdgHaLdjaNm8JpLJYLFSv4UehOgBpQ_5k3L6kAJ8.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 3](https://aussiedealscout.com/i/ZDkvHOYlbKa3xKFk0iPSBqKhxq8U5nauetg5-ioCVYn0CT4nKCPw5FnGIMP-cSSrnixBmbBvP9nRzYO-7OLbsvNW4QVZqAeLHqnga9c1hMb_l7Whv2nuOAH5.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 4](https://aussiedealscout.com/i/vStaZnD9rB1dy-wIUwh4mZwe5jGUQMYixsxrrIc7gtuvmvT_qGHObUPDyRLex6yyPg3t4LlmJzUJJR6xNhE2ajRMeGFDxXBM1sjiM0HvdwDeN6-DWlE3FOpH.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 5](https://aussiedealscout.com/i/KnBXLm--i0VTiIj2MWsyohudEi6p8XiN3Q0tPcgWtAmr4xEFAhpz5O9-DB9Z_GBOkXsISHx-udJiquVHum3qZAtvymgoIJX41c4p7D6lLa3a_zn2DoPd4pJc.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 6](https://aussiedealscout.com/i/_1r7AVlAbuP2D8RiHlMYBHzmUw6jC7d3tt2CrWHWL9-stsuHfQO9vk262tk_xGyH_1KDh8jDFKx0BfrSiyjm6Ffb7nGM4O0y5l_ilPxjlSxcqLtdkvuF7K9k.jpg)

![Arena Men’s Dynamo R Swim Brief, 5.5 cm — 7](https://aussiedealscout.com/i/fmOW-1faGY5-CRjmylY7qRBL2pnHj65kFuzN7qSIfpCdE4xYu7AAhi44ZojGgbggSs12QFg9wK7b87BHwe62crD6fsB9bZK4jk8vQZV0MSkawGJJso8F4Ieq.jpg)