We recommend using your natural waist measurement and referencing our size chart for the best fit. If you're between sizes, choose based on your comfort preference — a more relaxed fit or a more snug feel. The Core Trainer is designed to fit true to size.

The Core Trainer is designed for everyday wear and light-to-moderate training. It offers flexible compression, posture support, and a smooth fit that moves with you throughout the day. The Power Belt is built for higher-intensity workouts and strength training. It provides firmer core support, added structure, and increased stability during lifts and compound movements. If you want daily comfort → Core Trainer If you want training-focused support → Power Belt

Yes. Waistless Fit trainers are designed to be worn during movement, including workouts. They’re made to stay in place, support your core, and move naturally with your body. We recommend starting with lighter workouts first to allow your body to adjust, then increasing intensity as comfortable

When worn correctly and in the right size, waist trainers can be a comfortable part of your routine. The Core Trainer is designed for flexible, everyday wear — without excessive restriction.

Waistless Fit focuses on structure, comfort, and consistency. Our products are designed to support your routine in a way that feels natural, wearable, and easy to maintain over time.

If you’re new, start with 1–2 hours per day and gradually increase as your body adjusts. Many customers wear their trainer during workouts or daily activities, but extended wear should always feel comfortable — never restrictive or painful. Consistency matters more than duration.