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    Size charts Apr 28, 2026 4 min read

    Tracksuit Size Chart (Top & Bottom Together)

    A tracksuit is a matched jacket and bottoms, so you size the top by chest and the bottoms by waist. When a set is sold as one size (S–XXL), that size has to work for both — here's how to check it does.

    Tracksuit Size Chart (to-fit body, inches)

    SizeChest (jacket)Waist (bottoms)Inseam
    S36–3828–3030"
    M39–4131–3330.5"
    L42–4434–3631"
    XL45–4737–3931.5"
    XXL48–5040–4232"

    Notes

    Size the set to your chest. When a tracksuit is sold as a single size, the jacket (chest) is usually the harder piece to fit, so size to your chest. The bottoms have an elastic waist that absorbs a range, so they'll follow more easily.

    Allow a little layering room in the jacket. Track jackets are often worn over a tee or hoodie, so a touch of room in the chest is fine — but don't oversize, or the shoulders drop and the whole set looks sloppy.

    Buy separates if your top and bottom differ. If your chest and waist point to different sizes, look for brands that sell the jacket and bottoms separately. Forcing one size onto a mismatched build is the usual reason a set fits one half well and the other poorly.

    FAQs

    How do I size a tracksuit?

    Size the jacket by your chest measurement and the bottoms by your waist. For a single-size set, go by your chest since the elastic-waist bottoms adapt to a range. If your chest and waist sizes differ a lot, buy separates.

    Do tracksuits run big?

    Tracksuits often run slightly generous for a relaxed, athletic look, and the elastic waist adds give. If you want a slimmer look or are between sizes, size down — but keep enough chest room to layer.

    How do I measure for a track jacket and bottoms?

    Measure your chest at the fullest point for the jacket and your waist for the bottoms, plus your inseam for length. Match the chest to the size chart and confirm the waist range covers your measurement.

    Need this on your store?

    Tailor Size Guide ships pre-built size charts for Shopify.