Size Chart

Size & Fit Guide – Avid Swim

Size & Fit Guide

Find your perfect fit — all measurements are in inches unless noted

Fit Note: Bikinis run a size smaller. We recommend choosing one size up when purchasing for the most comfortable fit.

Women's Swimwear

Tag Size Bust Waist Hips USA UK / AU EU
XS 30–32 20–22 32–34 0–2 2–4 30–32
S 32–34 22–24 34–36 4–6 6–8 34–36
M 34–36 24–26 36–38 8–10 10–12 38–40
L 36–38 26–28 38–40 12–14 14–16 42–44
XL 38–40 28–30 40–42 16–18 18–20 46–48
XXL 40–42 30–32 42–44 20–22 22–24 50–52

Between sizes? Size up for a relaxed fit, or size down for a more sculpted look.

Tops

Inch XS S M L XL 2XL
Length 16.5 16.9 17.3 17.7 18.1 18.5
Bust 31.5 33.1 35.4 37.8 40.2 42.5
Shoulder 13.4 13.8 14.4 15.0 15.6 16.1
Sleeve 23.2 23.6 24.0 24.4 24.8 25.2

All measurements in inches. Between sizes? We recommend sizing up for a relaxed fit.

Dresses (Inches)

Inch S M L XL 2XL 3XL 4XL 5XL
Length 40.9 41.3 41.7 42.1 42.5 42.9 43.3 43.7
Bust 29.1 30.7 33.1 35.4 37.8 40.2 42.5 44.9
Waist 25.2 26.8 29.1 31.5 33.9 36.2 38.6 40.9
Hip 30.7 32.3 34.6 37.0 39.4 41.7 44.1 46.5

Dresses (Centimeters)

CM S M L XL 2XL 3XL 4XL 5XL
Length 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0
Bust 74.0 78.0 84.0 90.0 96.0 102.0 108.0 114.0
Waist 64.0 68.0 74.0 80.0 86.0 92.0 98.0 104.0
Hip 78.0 82.0 88.0 94.0 100.0 106.0 112.0 118.0

Measurements taken when products are laid flat. Actual measurements may vary by up to 3cm. Between sizes? We recommend sizing up.

Women's Wide-Leg Pants

Size Length Waist Hip
XS 41.3 27.2 38.6
S 41.7 28.7 40.2
M 42.1 30.3 41.7
L 42.7 32.7 44.1
XL 43.3 35.0 46.5
2XL 43.9 37.4 48.8

All measurements in inches. Between sizes? We recommend sizing up.

Men's Swimwear

Size Numerical (in) Waist (in) Hip (in)
XS 25–27 26–28 31.5–33.5
S 28–30 29–31 34.5–36.5
M 31–33 32–34 37.5–39.5
L 34–37 35–38 40.5–43.5
XL 38–42 39–43.5 44.5–48.5
XXL 43–47 44.5–49 49.5–53.5
XXXL 47–52 50–53 53.5–57

Between sizes? Size up for a more comfortable fit.

Kids Tee

Size Width (in) Length (in)
XS 13.5 17.25
S 14.5 19.5
M 15.75 21.5
L 16.5 22.75
XL 17.25 23.75
XXL 18.25 25

*Width is a single-side measurement. Double the number for the full measurement. Allow a 1″ variance.

Boys Swim Trunks

Size Waist (in) Hip (in) Outseam (in) Inseam (in)
XS (4–5 yrs) 10 14 14.25 6
S (6–7 yrs) 11 15 16 7
M (8–9 yrs) 12 16 17.5 8
L (10–11 yrs) 12.5 17 18.25 8.25
XL (12 yrs) 13.5 18 19.5 9.25
XXL (13–14 yrs) 14 19 20.75 10.25

*Waist & hip are single-side measurements. Double the numbers for full measurements. Allow a 1″ variance.

Girls Swim

Size Length Chest Width Hem Width Trouser Length Waist Width Hip Width
2T 19.05 48.26 45.72 18.41 43.18 48.26
XXS 20.32 53.34 50.8 19.05 50.8 55.88
XS 21.59 58.42 55.88 20.32 55.88 60.96
S 24.13 62.23 59.69 21.59 59.69 64.77
M 25.4 67.31 64.77 22.86 64.77 69.85
L 27.94 72.39 69.85 24.76 69.85 74.93
XL 29.21 77.47 74.93 26.67 74.93 80.01

Measurements obtained from manually measuring the product and may be off by 2–3 CM. Between sizes? We recommend sizing up.

How to Measure

Body measurement guide showing bust, waist, and hip measurement points

Use a flexible measuring tape and wear light clothing or swimwear. Stand relaxed with feet together.

Bust
Measure around the fullest part of your bust, keeping the tape level across your back.
Waist
Measure around your natural waistline — the narrowest point of your torso, usually just above the navel.
Hips
Measure around the widest part of your hips and buttocks, keeping the tape parallel to the floor.
Length (Pants)
Measure from the top of the waistband to the hem along the outside of the leg.
Tip: If you don't have a flexible tape measure, use a piece of string and then measure it flat against a ruler.

Still Not Sure?

We're happy to help you find your perfect fit.

info@avidswim.com