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How to find your perfect fit:

Take measurements using soft tape measure.
Measure the fullest area of your bust, waist, & hips.
If you are in between sizes, we recommend sizing up.

WOMEN'S SWIM & SHORTS

	XS	S	M	L	XL
USA/CAN	0-2	2-4	4-6	6-8	10-12
Bust (in)	30-31	32-33	34-35	36-37	38-39
Cup	A	A-B	B-C	D	D-DDD
Hips (in)	29-31	32-33	34-35	36-38	39-43
Waist (in)	22-23	24-25	26-28	29-31	32-34

EXTENDED WOMEN'S SWIM & SHORTS

	XXL	XXXL	2X	3X
USA/CAN	12-14	16	18	22-24
Bust (in)	41-43	44-45	48	52
Cup	DDD-E	DDD-E	E-F	E-F
Hips (in)	44-45	45-48	48-50	51-52
Waist (in)	34-36	38-40	40-42	42-43

Our bikinis are made cheeky, secure & tight. Perfect for the waves & an active lifestyle. Your suit should be snug when you first try it on so that once it's wet, you achieve a perfect water fit. We sew very skimpy. Just because the size is L, that doesn't mean substantially more coverage. It does however mean longer straps & an increase in fabric by half an inch or less (see image below). Our swimwear will keep a consistent "Tai Swim" minimal cut, no matter the style or size.

Comparison of fabric coverage between a Tai Swim Joelle Set XS & L

Tai Swim Joelle Set Size XS vs. Size L

Example: If you are not used to tight/sporty swimwear & usually wear a Medium in other brands not based in Hawai'i, you might be a Large in Tai Swim.

WOMEN'S DRESSES, SKIRTS & PANTS

	XS	S	M	L	XL
USA/CAN	0-2	2-4	4-6	6-8	10-12
Pants/Skirts (in)	38	39	40	41	42
Mini Dress (in)	22	23	24	26	27
Maxi Dress (in)	51	52	53	54	55
Waist (in)	22-23	24-25	26-28	29-31	32-34

Pants & skirts are measured from the waist seam to the floor. Mini & maxi dresses are measured from the bust (scoop neck) to the bottom of the dress at its full length.

WOMEN'S JUMPSUITS & ROMPERS

	XS	S	M	L	XL
USA/CAN	0-2	2-4	4-6	6-8	10-12
Swim Bottom	XS	XS-S	S-M	M-L	L-XL
Active Bottom	XS	XS-S	S-M	M-L	L-XL
Inseam (in)	2	2.5	3	3.5	4
Waist (in)	22-23	24-25	26-28	29-31	32-34

For our activewear jumpsuits and rompers, we recommend choosing your usual active bottom or swimwear bottom size for the best fit. The adjustable straps offer added support, and if you're between sizes, we suggest sizing up for extra comfort.

MEN'S BOARDSHORTS & TRUNKS

	S	M	L	XL	XXL
Hip (in)	28-30	31-33	34-36	36-38	38-42
Chest (in)	37-38	39-40	41-42	43-44	45-47

Men's boardshorts fit very true to size. Sticking with your regular hip size is recommended. All of our boardshorts feature standard pant sizing with lace-up waist. Our trunks feature an adjustable string with elastic bands to secure at your preferred tightness level.

KID'S SWIMWEAR & TRUNKS

	1/2Y	3/4Y	5/6Y	7/8Y	10/12Y
Age (yrs)	0-2	2.5-4	4.5-6	6.5-9	10-12
Hip (in)	14-18	18-20	20-23	23-26	26-29

Kid's swimwear fits true to size and is based on age (years). Going with your child's age is a great place to start. Hip measurements feature the minimum and maximum stretch for bikini bottoms and boardshorts. In-between sizes should size up. All kids swimwear and trunks feature many places for adjusting and can stretch with your child as they grow.

To inquire about any fit/style questions for all sizes, email us at info@taiswim.co.

Scrunchy cheeky back and smooth adjustable side ties for the cutest skimpy look. Seamless stitching for ultimate comfort. Page will be your new tanning bestie.

model size & fit

Tai is 5'4" (163cm), Bust 32" (81cm), Waist 23" (58cm), Hips 31" (79cm) & wearing Extra Small
Tristin is 5'5" (167cm), Bust 33" (82cm), Waist 26" (66cm), Hips 35" (88cm) & wearing Small

Swimwear, Boardies & Active

Made from recycled plastic bottles using Repreve & Carvico Vita fabric (85% ribbed recycled nylon, 15% eco spandex)
We feature no hardware by using long strings to adjust fit. Almost all products feature tag-less heat transfer technology & seamless stitching
Hand wash in cold water & lay flat to dry for lasting wear

We offer free shipping on all domestic orders over $200 USD. Please see our shipping policy for more info
Delivered to you single use plastic-free & carbon neutral

Our exchange policy is store credit only for items purchased at regular price or with a discount of less than 20% within 14 days. See our full policy for more details