Fabletics generally runs true to size, but compression and style details can change the feel from piece to piece. This guide explains how to read the fit notes, lengths, and support levels before choosing a size.

Fabletics Sizing: Does Fabletics Run Small, Big or True to Size?
The general rule
Fabletics generally runs true to size, but compression and style details can change the feel from piece to piece. The official FAQ says most styles are true to size, a useful default rather than a guarantee. For a fabletics size chart, I would start with the brand's guidance, then check the exact product's size and length options; the 2026 leggings guide says its featured styles span XXS to 4X, while 7/8, Regular, and Tall availability varies by product and color. It also recommends a movement check: sit, hinge, lunge, and lift a knee to see whether the waistband stays put and the fabric limits your stride. That test is worth doing in each compression family, because PowerHold is meant to feel firmer than soft PureLuxe, and a longline bra has different pressure points than a skirt or short. Nordstrom pages show fit selections like Petite, Regular, Tall, and M Regular, while Amazon pages offer distinct letter sizes. I could not verify a detailed measurement chart in the brand help page, so I would not invent a waist or hip conversion. Start true to size, use the exact color's available sizes, and move before deciding.
Start with the leggings
Leggings and flared pants are where compression matters most. Define PowerHold High-Waisted Legging is the firmest option in this set: Fabletics describes PowerHold as maximum compression and recommends Define for strength training. Cold Weather Essential Legging adds a brushed interior for lower-temperature workouts. Seamless Scrunch High-Waisted Legging uses a close, sculpted seamless construction, while Oasis PureLuxe Crossover Flare leans toward a softer studio feel with a crossover waist and flared hem. Those four styles cover distinct sensations, so I would not buy them all in the same size just because the brand's general note says true to size. Start with the size guide, then check the available sizes and inseam for the product color you want; Nordstrom displays size and inseam choices separately on the crossover flare page. In the fitting room, sit, hinge, lunge, and lift one knee. If the waistband slides or fabric changes your stride, adjust size or style rather than talking yourself into it.
Bras are not one fit category
Sports bras and built-in tops need a separate fit check from leggings. No-Bounce Sports Bra is designed for high-impact workouts; Fabletics' matching-set guidance notes its high neckline, wider band, and perforated details for airflow. Front Zip High Impact Sports Bra adds a zipper and molded cups. PureLuxe Longline Low-Impact Bra is intended for gentler studio movement, with adjustable straps and a hook-and-eye closure; Principal Built-In Bra Tank is a low-impact top with a built-in bra, sweat-wicking fabric, and UPF protection. A support label is about movement, not a cup-size conversion. I would test the band by breathing deeply and lifting my arms overhead; if it rides up or the straps pinch, try another size or shape. For running, start with the more supportive bra; for yoga and walks, lighter support may feel less restrictive.
Shorts and skirts need a movement test
Shorts and skirts make it clear that sizing is not only about the waist. Anywhere Motion365+ 6-Inch Short and On-The-Go PowerHold Ultra High-Waisted 6-Inch Short share an inseam, but are designed with different fabric names; Fabletics calls PowerHold its maximum-compression fabric. On-The-Go Classic Mini Skirt and Crossover Flounce Skirt give you skirt shapes to compare with shorts. Use each product page's color and size controls before buying. In trying shorts, sit and step into a lunge to see if the leg hem rolls or the waistband shifts. With a skirt, check how the lining or coverage feels before deciding. If the waistband digs but the leg opening fits, consider whether a different style will solve it; do not size up automatically and create a loose hem. The right size is the one that stays stable through the movement you plan to do.


















