Weighted vests surge in popularity as Peloton adds classes

Peloton’s May 2025 addition of weighted-vest classes to its streaming exercise lineup crystallized a broader surge in interest in wearable weights, instructors and industry observers say. Members responded enthusiastically, and retailers and fitness studios have increasingly promoted vests and related programming.

The practice of adding mechanical load to the body while exercising — long part of military training in the form of "rucking," or walking with a weighted backpack — has re-emerged in commercial fitness. The global market for weighted vests was valued at about $199 million in 2024 and is projected to reach roughly $313 million by 2031.

Proponents say the devices are a straightforward way to raise workout intensity without changing movement patterns. Strapping extra weight to the torso increases the mechanical load on the skeleton and forces muscles to work harder to maintain posture and execute movement, instructor Rebecca Kennedy told members when Peloton launched the classes. "Our metabolic output naturally increases, because the load is heavier," she said. "We’re getting higher use of oxygen, we’re burning more calories, we have more strain over our entire body, and especially because it’s on our trunk, our postural muscles are working quite a bit more."

Historically, rucking has been shown to improve endurance and to build muscular power and stamina, and advocates of weighted vests argue that the devices deliver similar benefits in a gym or home workout setting. For many users, the attraction is the ability to increase difficulty without adding external equipment such as heavier dumbbells or changing exercise technique.

Manufacturers offer vests with fixed weights and modular systems that allow users to add or remove plates. Fitness instructors and program designers have responded to consumer demand by creating classes structured around the vests, ranging from walking and hiking simulations to high-intensity interval and bodyweight strength sessions.

Medical and fitness professionals caution that the additional load changes how forces are distributed through the body and can increase strain. Users report heightened exertion and changes in breathing and posture as immediate effects; longer-term outcomes depend on how the vests are used, how weight is distributed, and a person’s baseline fitness and musculoskeletal health.

Physical therapists and sports-medicine clinicians generally advise gradual progression when increasing external load and attention to form; people with preexisting joint, spine or cardiovascular conditions are typically advised to consult a clinician before beginning a weighted-vest program. Proper fit and even weight distribution are also cited as important factors to reduce the risk of localized pressure, rubbing or altered movement patterns.

Research into weighted vests spans military conditioning studies, rehabilitation contexts and athletic training, but experts say outcomes vary by population, vest design and program specifics. Some studies of rucking and weighted-vest use document improvements in endurance and strength measures, while others emphasize the need for controlled progression and individualized programming.

The trend reflects broader consumer appetite for tools that promise measurable increases in workout intensity without requiring more time. Companies that sell exercise equipment and digital platforms that offer guided workouts have moved quickly to incorporate vests into product lines and class schedules, responding to demand from exercisers seeking more challenging at-home options.

As the market grows, fitness professionals urge attention to individual needs and clear guidance. For users considering a weighted vest, common recommendations include starting with light loads, focusing on posture and breathing, and seeking professional advice if there is any history of injury or chronic health conditions. Observers say the devices are unlikely to replace traditional strength training tools for all users but are being adopted as an additional option for those looking to modify intensity and stimulus in familiar movements.

The popularity of weighted vests is part of a cycle in which fitness trends move from niche or specialized practice into mainstream offerings as companies and instructors package them for wider audiences. Whether the devices deliver long-term benefits for broad populations will depend on how they are integrated into training programs and whether users apply them with caution and appropriate progression.