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          © 2023 Proof ®

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          With a pair for every flow, you’ll be able to find your Proof™-perfect fit. 

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Light

          Moderate

          Heavy

          Super-Heavy

          Shop period leaks

          Proof™ provides serious protection from bladder leaks, without added bulk. 

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Moderate

          Heavy

          Super-Heavy

          Shop bladder leaks

          Discrete protection with room to accommodate your growing bump.

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Super-Light

          Light

          Moderate

          Shop maternity

          Designed with new moms in mind, leak protection without the bulk. 

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Moderate

          Heavy

          Super-Heavy

          Shop postpartum

          Go ahead, break a sweat. Our moisture-wicking fabric also reduces odor. 

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          heavy

          super-heavy

          Shop sweat

          Undercover protection for every day of the week.

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Super-Light

          Light

          Shop everyday

          Perfect for daily discharge, Proof™ keeps you fresh and dry.

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Super-Light

          Light

          Moderate

          Shop discharge

          For in-between days, these undies keep you spotless all day long. 

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Teaspoons Icon

          What level is your leak?

          Super-Light

          Light

          Moderate

          Shop spotting
          super-light Icon

          Holds up to 1 Light Tampon or Panty Liner

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Great For

          panty liner replacement

          light spotting

          odor reduction

          Shop super-light
          light Icon

          Holds up to 1 Regular Tampon or 2 Teaspoons

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Great For

          panty liner replacement

          light period leaks

          odor reduction

          Shop light
          moderate Icon

          Holds up to 3 Regular Tampons or 6 Teaspoons

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Great For

          moderate period leaks

          replace or back up a tampon, pad, or cup

          odor reduction

          Shop moderate
          heavy Icon

          Holds up to 4 Regular Tampons or 8 Teaspoons

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Great For

          moderate bladder leaks

          replace or back up a tampon or cup

          odor reduction

          Shop heavy
          super-heavy Icon

          Holds up to 5 Regular Tampons or 10 Teaspoons

          Our Patented Leak-Loc® technology keeps you leak-free learn more

          Great For

          moderate bladder leaks

          maximum overnight period protection

          odor reduction

          Shop super-heavy

          underwear sizing

          Your hip and waist measurements are the most important size when finding the perfect fit.

          HIP
          33-35"
          84-89cm
          35-38"
          89-97cm
          38-41"
          97-104cm
          41-44"
          104-112cm
          44-47"
          112-119cm
          47-50"
          119-127"
          50-54"
          127-137cm"
          WAIST
          23-25"
          58-64cm
          25-28"
          64-71cm
          28-31"
          71-79cm
          31-34"
          79-86cm
          34-37"
          86-94cm
          37-40"
          94-102"
          40-44"
          102-112"
          US
          0-2
          0-2
          4-6
          4-6
          8-10
          8-10
          12-14
          12-14
          16-18
          16-18
          20-22
          20-22
          24-26
          24-26
          AU/UK
          4-6
          4-6
          8-10
          8-10
          12-14
          12-14
          16-18
          16-18
          20-22
          20-22
          22-24
          22-24
          26-28
          26-28
          EUR
          32-34
          32-34
          36-38
          36-38
          40-42
          40-42
          44-46
          44-46
          48-50
          48-50
          52-54
          52-54
          56-58
          56-58

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.

          bra sizing

          Your bra measurements are the most important size when finding the perfect fit.
          32
          70
          70
          XS
          XS
          XS
          XS
          XS
          XS
          S
          S
          S
          M
          M
          M
          M
          M
          M
          L
          L
          L
          34
          75
          75
          S
          S
          S
          S
          S
          S
          S
          S
          S
          M
          M
          M
          L
          L
          L
          L
          L
          L
          36
          80
          80
          S
          S
          S
          M
          M
          M
          M
          M
          M
          L
          L
          L
          L
          L
          L
          XL
          XL
          XL
          38
          85
          85
          M
          M
          M
          M
          M
          M
          L
          L
          L
          L
          L
          L
          XL
          XL
          XL
          XL
          XL
          XL
          40
          90
          90
          L
          L
          L
          L
          L
          L
          XL
          XL
          XL
          XL
          XL
          XL
          XL
          XL
          XL
          42
          95
          95
          L
          L
          L
          XL
          XL
          XL
          XL
          XL
          XL
          XL
          XL
          XL

          teen underwear sizing

          Your hip and waist measurements are the most important size when finding the perfect fit.
          PROOF TEEN ALPHA
          S
          M
          L
          XL
          2XL
          Girls Size
          8/10
          10/12
          12/14
          14/16
          Coming Soon
          Waist Measure
          23"-24"
          24"-25"
          25"-26"
          26"-27"
          Coming Soon
          Hip Measure
          28"-30"
          30"-32"
          32"-34"
          34"-36"
          Coming Soon
          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.
          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.
          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.
          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.
          Measure around your body as shown.

          If your measurements fall into different size categories, your hip measurement will be most accurate.