
8 best swimming earplugs, from Alpine, Speedo, Zoggs and more
Designed to create a watertight seal, they help prevent water from entering the ear canal. This can be a major cause of discomfort, cause infections such as swimmer's ear, and even create longer-term issues with hearing.
While some people wear earplugs as a precaution against earaches or pressure changes, for those prone to ear infections or with grommets, earplugs are essential. The best swimming earplugs stay securely in place even during energetic swims, feel comfortable for extended periods, and block water without muffling sound too much.
When choosing a pair, it's worth considering the material (silicone and rubber are common), whether you want mouldable or pre-shaped plugs, and how easy they are to insert and remove. The fit is key – a good seal will keep your ears protected without feeling too tight or intrusive.
I tested a range of options across different price points to find swimming earplugs that combine effective protection with ear comfort. I tried them in a variety of swimming scenarios, so whether you're doing lengths in an indoor pool, training for a triathlon in open water, or plunging into the sea for a spot of cold-water swimming, there's a pair that will work for you.
How I tested
Each pair of swimming earplugs was tested during at least five sessions in both indoor pools and open water to assess performance under varying conditions. To maintain consistency, I swam set distances and repeated similar movements – freestyle, tumble turns and backstroke – while wearing the same swim cap and goggles.
I evaluated each set of earplugs on water seal integrity, comfort over extended periods, ease of insertion and removal, and how much I could hear while wearing them. Special attention was given to how well the plugs maintained their seal during turning and acceleration when overtaking, as even a minor shift can potentially enable leaks and compromise protection.
Why you can trust IndyBest reviews
Zoe Griffin has been evaluating and reviewing a wide range of products for IndyBest since 2021. As a triathlete, Zoe has particular expertise when it comes to swimming, sports, and fitness, reviewing everything from fitness trackers to running watches. When assessing swimming earplugs, she took into account choices for all budgets and her reviews are always based on her genuine experiences through real-world testing.
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The Guardian
10 hours ago
- The Guardian
Scientists identify bacterium behind devastating wasting disease in starfish
A decade after the onset of a sea star wasting disease (SSWD) epidemic considered the largest ever documented in the wild, researchers have identified the microbial culprit responsible: a strain of the bacterium Vibrio pectenicida. In 10 years the bacterium has ravaged sunflower sea stars (Pycnopodia helianthoides), a large sea star or starfish, along the western coast of North America, with a loss of 5.8 billion since 2013 – or 90% of the total global population. The sunflower sea star is now included on the International Union for Conservation of Nature's red list of critically endangered species. Previous studies had tested for V pectenicida in tissue samples and yielded inconclusive results. Instead, by examining the sea stars' coelomic fluid, which acts like blood, researchers were able to confirm with certainty V pectenicida's role in causing SSWD due to its high abundance there. Infection with the V pectenicida strain FHCF-3 begins with exterior lesions, leading to limb loss and contortion, and ultimately kills afflicted individuals by melting their tissues into a white, mucus-like paste. Identifying the disease in afflicted sea stars was impossible without a known pathogen, as sea stars can respond with similar visual signals to other stressors such as low oxygen, salinity variation and extreme heat. The indirect link between rising ocean temperatures and SSWD remains a key area of interest, since V pectenicida is known to proliferate in warm water during seasonal variations and anomalous marine heating events. The research, published this week in the journal Nature Ecology & Evolution, was led by Dr Melanie Prentice and Dr Alyssa Gehman of the Hakai Institute in British Columbia, Canada, as part of a four-year international collaboration involving the University of British Columbia, the University of Washington and the Nature Conservancy, among other parties. The decline of sunflower sea stars has ramifications for marine ecosystems beyond the loss of a single species. 'Identifying the cause of SSWD is incredibly impactful,' Prentice said. 'In the absence of sunflower stars, [kelp-eating] sea urchin populations increase, which means the loss of kelp forests, and that has broad implications for all the other marine species and humans that rely on them.' Kelp forests provide a habitat for thousands of marine creatures, support local economies through fisheries and recreation, and are culturally important for First Nations and tribal communities. They also stabilise sediments, protect coastlines from storms, and are an important carbon sink for sequestering carbon dioxide. Sign up to Down to Earth The planet's most important stories. Get all the week's environment news - the good, the bad and the essential after newsletter promotion Though the epidemic is still ongoing, the hope is that this breakthrough will aid recovery and treatment efforts for various sea star species across the world and the ecosystems affected by their decline. Methods being explored include captive breeding for resistant individuals and developing probiotic solutions which can be introduced to ecosystems. 'Now that we have found the causative agent of disease, it makes me hopeful that we might actually be able to do something for sunflower sea stars,' says Gehman. 'We can be really targeted in how we work with them, and I think that's going to help us move a lot faster and to try to tackle SSWD.'


The Independent
a day ago
- The Independent
Scientists believe they have solved the mystery of what killed more than 5 billion sea stars
Scientists have finally unravelled the decade-long mystery behind the devastating epidemic that has killed more than five billion sea stars off the Pacific coast of North America. The breakthrough identifies a specific bacterium as the culprit, offering a crucial step towards saving the iconic marine creatures. Since 2013, a mysterious sea star wasting disease has caused a mass die-off from Mexico to Alaska, affecting over 20 species and continuing its destructive path today. The sunflower sea star was particularly hard hit, losing approximately 90 per cent of its population within the first five years of the outbreak. "It's really quite gruesome," said marine disease ecologist Alyssa Gehman at the Hakai Institute in British Columbia, Canada, who contributed to pinpointing the cause. She described how healthy sea stars typically have "puffy arms sticking straight out," but the disease causes them to develop lesions before "their arms actually fall off." The long-sought answer, published in the journal Nature Ecology and Evolution, points to a bacterium that has also been found to infect shellfish. The findings "solve a long-standing question about a very serious disease in the ocean," commented Rebecca Vega Thurber, a marine microbiologist at the University of California, Santa Barbara, who was not involved in the study. Identifying the cause proved to be a complex, decade-long endeavour, fraught with false leads. Early research mistakenly focused on a densovirus, which was later found to be a normal resident within healthy sea stars, not linked to the disease, according to Melanie Prentice of the Hakai Institute, a co-author of the new study. Previous attempts also failed because researchers studied tissue samples from dead sea stars that no longer contained the vital bodily fluid surrounding their organs. The latest study, however, meticulously analysed this fluid, known as coelomic fluid, where the bacterium Vibrio pectenicida was ultimately discovered. Microbiologist Blake Ushijima of the University of North Carolina, Wilmington, who was not involved in the research, praised the team's "really smart and significant" detective work, noting the immense difficulty in tracing environmental disease sources, especially underwater. Scientists say they have solved the mystery of what killed more than 5 billion sea stars Show all 5 With the cause now identified, scientists are better positioned to intervene. Ms Prentice suggested that researchers could now test the remaining sea stars for health, considering relocation or captive breeding programmes to reintroduce them to areas where sunflower sea stars have been decimated. They may also investigate if certain populations possess natural immunity or if treatments like probiotics could boost resistance to the disease. The recovery of sea star populations is not merely about saving a single species; it is vital for the entire Pacific ecosystem. Healthy sea stars play a crucial role in controlling sea urchin populations. "They're voracious eaters," Ms Gehman explained about the Sunflower sea stars, despite their seemingly innocent appearance, as they consume almost everything on the ocean floor. The dramatic decline in sea stars led to an explosion in sea urchin numbers, which in turn devoured approximately 95 per cent of Northern California 's kelp forests within a decade. These kelp forests are critical habitats, providing food and shelter for a diverse array of marine life, including fish, sea otters, and seals. Researchers are hopeful that these new findings will enable them to restore sea star populations and, consequently, regrow the kelp forests that Ms Thurber aptly compares to "the rainforests of the ocean." ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.


The Independent
a day ago
- The Independent
Scientists say they have solved the mystery of what killed more than 5 billion sea stars
Scientists say they have at last solved the mystery of what killed more than 5 billion sea stars off the Pacific coast of North America in a decade-long epidemic. Sea stars – often known as starfish – typically have five arms and some species sport up to 24 arms. They range in color from solid orange to tapestries of orange, purple, brown and green. Starting in 2013, a mysterious sea star wasting disease sparked a mass die-off from Mexico to Alaska. The epidemic has devastated more than 20 species and continues today. Worst hit was a species called the sunflower sea star, which lost around 90% of its population in the outbreak's first five years. 'It's really quite gruesome,' said marine disease ecologist Alyssa Gehman at the Hakai Institute in British Columbia, Canada, who helped pinpoint the cause. Healthy sea stars have 'puffy arms sticking straight out,' she said. But the wasting disease causes them to grow lesions and 'then their arms actually fall off.' The culprit? Bacteria that has also infected shellfish, according to a study published Monday in the journal Nature Ecology and Evolution. The findings 'solve a long-standing question about a very serious disease in the ocean," said Rebecca Vega Thurber, a marine microbiologist at University of California, Santa Barbara, who was not involved in the study. It took more than a decade for researchers to identify the cause of the disease, with many false leads and twists and turns along the way. Early research hinted the cause might be a virus, but it turned out the densovirus that scientists initially focused on was actually a normal resident inside healthy sea stars and not associated with disease, said Melanie Prentice of the Hakai Institute, co-author of the new study. Other efforts missed the real killer because researchers studied tissue samples of dead sea stars that no longer contained the bodily fluid that surrounds the organs. But the latest study includes detailed analysis of this fluid, called coelomic fluid, where the bacteria Vibrio pectenicida were found. 'It's incredibly difficult to trace the source of so many environmental diseases, especially underwater,' said microbiologist Blake Ushijima of the University of North Carolina, Wilmington, who was not involved in the research. He said the detective work by this team was 'really smart and significant.' Now that scientists know the cause, they have a better shot at intervening to help sea stars. Prentice said that scientists could potentially now test which of the remaining sea stars are still healthy — and consider whether to relocate them, or breed them in captivity to later transplant them to areas that have lost almost all their sunflower sea stars. Scientists may also test if some populations have natural immunity, and if treatments like probiotics may help boost immunity to the disease. Such recovery work is not only important for sea stars, but for entire Pacific ecosystems because healthy starfish gobble up excess sea urchins, researchers say. Sunflower sea stars 'look sort of innocent when you see them, but they eat almost everything that lives on the bottom of the ocean,' said Gehman. 'They're voracious eaters.' With many fewer sea stars, the sea urchins that they usually munch on exploded in population – and in turn gobbled up around 95% of the kelp forest s in Northern California within a decade. These kelp forests provide food and habitat for a wide variety of animals including fish, sea otters and seals. Researchers hope the new findings will allow them to restore sea star populations -- and regrow the kelp forests that Thurber compares to 'the rainforests of the ocean.' ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.