SIZING GUIDE

Find Your Fit

Every body is welcome at SPJ. Use this guide to find your perfect size — whether you’re shopping new or pre-loved. When in doubt, message us and we’ll help you pick.

Sizing at SPJ runs Newborn through 3X. We carry brand-new boutique styles in Small–3X, Little SPJ pieces from Newborn–Size 16, and Pre-Loved finds in XS–3X.

Every brand fits a little differently, so we list size notes on each product page. The charts below are a starting point — when between sizes, size up for comfy fits and stay true for fitted styles.

HOW TO MEASURE

Get your measurements

Grab a soft tape measure and wear a thin layer. Measure snug — not tight — and stand naturally.

Bust
Measure around the fullest part of your bust, keeping the tape parallel to the floor. Wear a thin, non-padded bra.
Waist
Measure around the smallest part of your natural waist, usually about an inch above your belly button.
Hip
Standing with feet together, measure around the fullest part of your hips and seat.
Inseam
Measure from the top inside of your thigh down to your ankle bone. Helpful for jeans, pants, and joggers.

Women’s Tops & Dresses

Measurements in inches. Sizing runs XS through 3X.

Size	US	Bust	Waist	Hip
XS	0–2	31–32	24–25	33–34
S	4–6	33–34	26–27	35–36
M	8–10	35–36	28–29	37–38
L	12–14	37–39	30–32	39–41
XL	16	40–42	33–35	42–44
1X	18	43–45	36–38	45–47
2X	20	46–48	39–41	48–50
3X	22	49–51	42–44	51–53

Women’s Bottoms & Denim

Denim sizes vary by brand — always check the product page for specifics.

Size	US	Waist	Hip	Inseam
XS	0–2	24–25	33–34	28–30
S	3/4–5/6	26–27	35–36	28–30
M	7/8–9/10	28–29	37–38	29–31
L	11/12–13/14	30–32	39–41	29–31
XL	15/16	33–35	42–44	30–32
1X	18	36–38	45–47	30–32
2X	20	39–41	48–50	30–32
3X	22	42–44	51–53	30–32

Little SPJ — Baby & Toddler

Approximate by age. Always check the product page for brand-specific notes.

Size	Age	Height (in)	Weight (lb)
NB	0–1 mo	18–21	up to 8
0–3M	0–3 mo	21–24	8–12
3–6M	3–6 mo	24–26	12–17
6–12M	6–12 mo	26–29	17–22
12–18M	12–18 mo	29–31	22–26
18–24M	18–24 mo	31–33	26–28
2T	2 yr	33–35	28–32
3T	3 yr	35–38	32–35
4T	4 yr	38–41	35–39
5T	5 yr	41–44	39–44

Little SPJ — Girls (Sizes 6–16)

Approximate by age. Brands vary — check product page for fit notes.

Size	Age	Chest	Waist	Hip
6	5–6 yr	24	22	25
6X/7	6–7 yr	25	23	26
8	7–8 yr	27	24	28
10	9–10 yr	28½	25	30
12	10–12 yr	30	26	32
14	12–13 yr	32	27	34
16	13–14 yr	33½	28	36

GOOD TO KNOW

Fit notes & tips

Between sizes?
For relaxed, oversized, and loungewear styles — size down for a closer fit. For fitted bodysuits, swim, and bodycon dresses — size up if you’re between.
Curvy & Plus (1X–3X)
Most of our curvy styles are cut with extra room through the hip and thigh. Check each product page for specific curvy fit notes.
Bump-friendly
Pieces tagged Bump Friendly are flowy or have stretch through the midsection — great through every trimester and after.
Pre-Loved sizing
Pre-Loved pieces are sized by the original brand’s label. Measurements are listed on each product so you can compare to your own.

Still not sure?

Message us with your measurements and the piece you’re eyeing — we’ll help you nail the fit before you buy.

Get fit help