size & fit chart

Thinx for All Leaks strives to protect you from leaks + run true to size. Check out our size guide for more information.

Standard adult sizes:

Adult Sizes:
XSSMLXL
US jean size24-6810-1214
waist25-26"63-66"27-28"68-71"29-30"73-76"31-32"79-82"33-34.5"84-88"
hip35-36"89-92"37-38"94-97"39-40"99-102"41-42"104-107"43-44.5"109-113"
Adult Sizes:
US jean sizewaisthip
XS225-26"63-66"35-36"89-92"
S4-627-28"68-71"37-38"94-97"
M829-30"73-76"39-40"99-102"
L10-1231-32"79-82"41-42"104-107"
XL1433-34.5"84-88"43-44.5"109-113"
Adult Plus Sizes:
US jean sizewaisthip
X14W36-37”"91-94"43-44”"109-112"
1X16-18W38-40"97-102"45-47"114-120"
2X20-22W 42-44"106-112"49-51"124-130"
3X24-26W46-48"117-122"53-55"135-140"
4X28-30W50-52"127-132"57-59"145-150"

Adult plus sizes:

Adult Plus Sizes:
X1X2X3X4X
US jean size14W16-18W20-22W24-26W28-30W
waist36-37"91-94"38-40"97-102"42-44"106-112"46-48"117-122"50-52"127-132"
hip43-44"109-112"45-47"114-120"49-51"124-130"53-55"135-140"57-59"145-150"
Adult Sizes:
US jean sizewaisthip
XS225-26"63-66"35-36"89-92"
S4-627-28"68-71"37-38"94-97"
M829-30"73-76"39-40"99-102"
L10-1231-32"79-82"41-42"104-107"
XL1433-34.5"84-88"43-44.5"109-113"
Adult Plus Sizes:
US jean sizewaisthip
X14W36-37”"91-94"43-44”"109-112"
1X16-18W38-40"97-102"45-47"114-120"
2X20-22W 42-44"106-112"49-51"124-130"
3X24-26W46-48"117-122"53-55"135-140"
4X28-30W50-52"127-132"57-59"145-150"

Our plus sizes are made with updated measurements through the waist, hip, and leg for your comfort. If you’ve purchased XXL-XXXL in the past, check your measurements against our new size chart — your size may have changed.

Adult Sizes:
XSSMLXL
US jean size24-6810-1214
waist25-26 cm63-66 cm27-28 cm68-71 cm29-30 cm73-76 cm31-32 cm79-82 cm33-34.5 cm84-88 cm
hip35-36 cm89-92 cm37-38 cm94-97 cm39-40 cm99-102 cm41-42 cm104-107 cm43-44.5 cm109-113 cm
Adult Sizes:
US jean sizewaisthip
XS225-26 cm63-66 cm35-36 cm89-92 cm
S4-627-28 cm68-71 cm37-38 cm94-97 cm
M829-30 cm73-76 cm39-40 cm99-102 cm
L10-1231-32 cm79-82 cm41-42 cm104-107 cm
XL1433-34.5 cm84-88 cm43-44.5 cm109-113 cm
Adult Plus Sizes:
US jean sizewaisthip
X14W36-37” cm91-94 cm43-44” cm109-112 cm
1X16-18W38-40 cm97-102 cm45-47 cm114-120 cm
2X20-22W 42-44 cm106-112 cm49-51 cm124-130 cm
3X24-26W46-48 cm117-122 cm53-55 cm135-140 cm
4X28-30W50-52 cm127-132 cm57-59 cm145-150 cm

Adult plus sizes:

Adult Plus Sizes:
X1X2X3X4X
US jean size14W16-18W20-22W24-26W28-30W
waist36-37 cm91-94 cm38-40 cm97-102 cm42-44 cm106-112 cm46-48 cm117-122 cm50-52 cm127-132 cm
hip43-44 cm109-112 cm45-47 cm114-120 cm49-51 cm124-130 cm53-55 cm135-140 cm57-59 cm145-150 cm
Adult Sizes:
US jean sizewaisthip
XS225-26 cm63-66 cm35-36 cm89-92 cm
S4-627-28 cm68-71 cm37-38 cm94-97 cm
M829-30 cm73-76 cm39-40 cm99-102 cm
L10-1231-32 cm79-82 cm41-42 cm104-107 cm
XL1433-34.5 cm84-88 cm43-44.5 cm109-113 cm
Adult Plus Sizes:
US jean sizewaisthip
X14W36-37” cm91-94 cm43-44” cm109-112 cm
1X16-18W38-40 cm97-102 cm45-47 cm114-120 cm
2X20-22W 42-44 cm106-112 cm49-51 cm124-130 cm
3X24-26W46-48 cm117-122 cm53-55 cm135-140 cm
4X28-30W50-52 cm127-132 cm57-59 cm145-150 cm

Our plus sizes are made with updated measurements through the waist, hip, and leg for your comfort. If you’ve purchased XXL-XXXL in the past, check your measurements against our new size chart — your size may have changed.

how to measure:

hip and waist measurement guide

For most of our styles, the hip measurement is the most important to consider for selecting the best fit, especially if you're between sizes.

waist - Measure the smallest area of the torso - right above the belly button and below the ribcage.

hip - Measure the widest part of the hip

Thinx for All Leaks strives to protect you from leaks + run true to size. Check out our size guide for more information.

Standard youth sizes:

Teen sizes:
9-10 (S)11-12 (M)13-14 (L)15-16 (XL)
waist23-24"58-61"24.5-25.5"62-65"26-27"66-69"28-29.5"71-75"
hip29-31"74-79"32-33"81-84"34-36"86-91"37-39"94-99"
Teen sizes:
waisthip
9-10 (S)23-24"58-61"29-31"73-79"
11-12 (M)24.5-25.5"62-65"32-33"81-84"
13-14 (L)26-27"66-69"34-36"86-91"
15-16 (XL)28-29.5"71-75"37-39"94-99"
Teen sizes:
9-10 (S)11-12 (M)13-14 (L)15-16 (XL)
waist23-24 cm58-61 cm24.5-25.5 cm62-65 cm26-27 cm66-69 cm28-29.5 cm71-75 cm
hip29-31 cm74-79 cm32-33 cm81-84 cm34-36 cm86-91 cm37-39 cm94-99 cm
Teen sizes:
waisthip
9-10 (S)23-24 cm58-61 cm29-31 cm73-79 cm
11-12 (M)24.5-25.5 cm62-65 cm32-33 cm81-84 cm
13-14 (L)26-27 cm66-69 cm34-36 cm86-91 cm
15-16 (XL)28-29.5 cm71-75 cm37-39 cm94-99 cm

how to measure:

hip and waist measurement guide

For most of our styles, the hip measurement is the most important to consider for selecting the best fit, especially if you're between sizes.

waist - Measure the smallest area of the torso - right above the belly button and below the ribcage.

hip - Measure the widest part of the hip

Thinx for All Leaks strives to protect you from leaks + run true to size. Check out our size guide for more information.

Signature adult sizes:

Signature adult sizes:
XSSMLXL2XL3XL4XL5XL
US jean size24-6810-1214161820-2224
waist25-26"27-28"29-30"31-32"33-34.5"35.5-37"37.5-38.5"39.5-40.5"41-42.5"
hip35-36"37-38"39-40"41-42"43-44.5"45.5-47.5"48.5-49.5"50-51"52-53"
Signature adult sizes:
US jean sizewaisthip
XS225-26"35-36"
S4-627-28"37-38"
M829-30"39-40"
L10-1231-32"41-42"
XL1433-34.5"43-44.5"
2XL1635.5-37"45.5-47.5"
3XL1837.5-38.5"48.5-49.5"
4XL20-2239.5-40.5"50-51"
5XL2441-42.5"52-53"

Essential adult sizes:

Essential adult sizes:
XSSMLXLX1X2X3X4X
US jean size0-24-68-1012-1416-1814W16W-18W20W-22W24W-26W28W-30W
waist23-25"26-28"29-31"32-34"35-37"36-37"38-40"42-44"46-48"50-52"
hip33-35"36-38"39-41"42-44"45-47"43-44"45-47"49-51"53-55"57-59"
Essential adult sizes:
US jean sizewaisthip
XS0-223-25"33-35"
S4-626-28"36-38"
M8-1029-31"39-41"
L12-1432-34"42-44"
XL16-1835-37"45-47"
X14W36-37"43-44"
1X16W-18W38-40"45-47"
2X20W-22W42-44"49-51"
3X24W-26W46-48"53-55"
4X28W-30W50-52"57-59"
Signature adult sizes:
XSSMLXL2XL3XL4XL5XL
US jean size24-6810-1214161820-2224
waist63-66 cm68-71 cm73-76 cm79-82 cm84-88 cm90-94 cm95-98 cm100-103 cm104-108 cm
hip89-92 cm94-97 cm99-102 cm104-107 cm109-113 cm115-121 cm123-126 cm127-130 cm132-135 cm
Signature adult sizes:
US jean sizewaisthip
XS263-66 cm89-92 cm
S4-668-71 cm94-97 cm
M873-76 cm99-102 cm
L10-1279-82 cm104-107 cm
XL1484-88 cm109-113 cm
2XL1690-94 cm115-121 cm
3XL1895-98 cm123-126 cm
4XL20-22100-103 cm127-130 cm
5XL24104-108 cm132-135 cm

Essential adult sizes:

Essential adult sizes:
XSSMLXLX1X2X3X4X
US jean size0-24-68-1012-1416-1814W16W-18W20W-22W24W-26W28W-30W
waist58-64 cm66-71 cm73-79 cm81-87 cm89-94 cm91-94 cm97-102 cm106-112 cm117-122 cm127-132 cm
hip84-89 cm91-97 cm99-104 cm106-112 cm114-120 cm109-112 cm114-120 cm124-130 cm135-140 cm145-150 cm
Essential adult sizes:
US jean sizewaisthip
XS0-258-64 cm84-89 cm
S4-666-71 cm91-97 cm
M8-1073-79 cm99-104 cm
L12-1481-87 cm106-112 cm
XL16-1889-94 cm114-120 cm
X14W91-94 cm109-112 cm
1X16W-18W97-102 cm114-120 cm
2X20W-22W106-112 cm124-130 cm
3X24W-26W117-122 cm135-140 cm
4X28W-30W127-132 cm145-150 cm

how to measure:

hip and waist measurement guide

For most of our styles, the hip measurement is the most important to consider for selecting the best fit, especially if you're between sizes.

waist - Measure the smallest area of the torso - right above the belly button and below the ribcage.

hip - Measure the widest part of the hip