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Proof Underwear Overnight Medium Boyshort - Black
$39.99
In Stock
Eligible for registries and wish lists
Fit & style
- UP TO 100% LEAKPROOF: Proof reusable period underwear offers up to 12 hours leak protection with a built-in super absorbent core to pull fluid away from your body and full front-to-back protection from your belly to your back to prevent to help prevent extra leaks
- POWERED BY ALWAYS: Proof’s patented Leak-Loc technology was further tested and developed in partnership with the makers of Always
- OVERNIGHT ABSORBENCY: These Overnight Boyshorts hold up to 9 regular tampons, offering maximum protection overnight
- FULL COVERAGE BOYSHORT: Offering our highest coverage fit with extra length, the Overnight Boyshort provides freedom and flexibility as you sleep. Plus, the flattering princess seam detailing and super-soft, breathable fabric keep you feeling cute and comfy all through the night
- WASHER & DRYER FRIENDLY: Ease your load with Proof undies. Simply toss your worn undies in the washer and dryer with rest of your laundry, and you're ready to go!
- FIND YOUR PERFECT PROOF FIT: Proof Underwear sizing versus US Pant Size: XS: 0-2; Small: 4-6; Medium: 8-10; Large:12-14; XL: 16-18; 2XL: 20-22; Check the Proof Fit Guide in images to learn more
Sponsored
About this item
Fit & style
- UP TO 100% LEAKPROOF: Proof reusable period underwear offers up to 12 hours leak protection with a built-in super absorbent core to pull fluid away from your body and full front-to-back protection from your belly to your back to prevent to help prevent extra leaks
- POWERED BY ALWAYS: Proof’s patented Leak-Loc technology was further tested and developed in partnership with the makers of Always
- OVERNIGHT ABSORBENCY: These Overnight Boyshorts hold up to 9 regular tampons, offering maximum protection overnight
- FULL COVERAGE BOYSHORT: Offering our highest coverage fit with extra length, the Overnight Boyshort provides freedom and flexibility as you sleep. Plus, the flattering princess seam detailing and super-soft, breathable fabric keep you feeling cute and comfy all through the night
- WASHER & DRYER FRIENDLY: Ease your load with Proof undies. Simply toss your worn undies in the washer and dryer with rest of your laundry, and you're ready to go!
- FIND YOUR PERFECT PROOF FIT: Proof Underwear sizing versus US Pant Size: XS: 0-2; Small: 4-6; Medium: 8-10; Large:12-14; XL: 16-18; 2XL: 20-22; Check the Proof Fit Guide in images to learn more
Ready to level up your nighttime comfort with Proof. by Always Reusable Period Underwear? Our Overnight Boyshort is the ultimate combination, delivering maximum coverage and absorbency all in one style. With a 2.5" inseam and princess seam detailing, these period undies move with you for a comfortable fit all night - and even into the morning. Crafted with 4 Leak-Loc layers and extended front-to-back protection, they can handle all your tossing and turning. Say goodbye to restless nights and hello to worry-free sleep. Leak Proof. Worry Proof. Sleep Proof.
Sizing: Womens
Material: 75% Nylon
Closure Style: Pull-On
Rise: Mid Rise
Fabric Name: Jersey
Sheerness: Opaque
Garment Details: Bonded Edge
Package Quantity: 1
Fabric Weight Type: Lightweight Fabric
Care and Cleaning: Machine Wash, Line Dry or Lay Flat to Dry
TCIN: 94761186
UPC: 810141593213
Item Number (DPCI): 245-04-6323
Origin: Made in the USA or Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 7.8 inches length x 7 inches width x 0.6 inches height
Estimated ship weight: 0.15 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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4.4 out of 5 stars with 162 reviews
5 out of 5 stars
8 October, 2025
originally posted on influenster.com
Comfy
[This review was collected as part of a promotion.] I got a large and they fit so well with room to breathe and I didn’t feel like My lower body was all scrunched up. They absorbed pretty good amounts of blood and would recommend for anyone! Love them
5 out of 5 stars
15 September, 2025
originally posted on influenster.com
No mess
[This review was collected as part of a promotion.] These are great! They fit true to size and are breathable. I don’t have to worry about anything happening overnight. I feel completely secure when wearing these.
4 out of 5 stars
4 September, 2025
originally posted on influenster.com
Lovee
[This review was collected as part of a promotion.] Worked for me all night no leaks and more comfortable than a pad I will definitely be a regular user during night time as someone with a heavy flow it’s perfect
5 out of 5 stars
20 August, 2025
originally posted on influenster.com
Super comfortable and absorbent
[This review was collected as part of a promotion.] Ideal to use during the night since it absorbs very well, and you can sleep relaxed, without fear of spills. The soft, breathable fabric and designed for worry-free sleep. They are suitable for washing machine and dryer. The size is perfect, and I can't talk to you about durability, since I could only use it in a single period
4 out of 5 stars
12 August, 2025
originally posted on influenster.com
Good!!
[This review was collected as part of a promotion.] Luckily haven't had to use yet since i usually don't get them but will be perfect for my light flow. Seems thick but won't be visible under pants, and tried them on and are super comfy! Seem great quality wise.
4 out of 5 stars
5 August, 2025
originally posted on influenster.com
Comfort and function all in one!
[This review was collected as part of a promotion.] These are super comfy and have a bit of built-in compression. They fit like a very short pair of bike shorts and feel like excellent quality materials and construction. I personally wear them overnight, as I wonder if the lines where the shorts end on my thighs would be visible in pants during the day. I prefer a brief cut for daytime. Unfortunately I am a very hot sleeper and just by the nature of these having a large absorbency area, I did find myself quite sweaty on a few occasions. I still find their comfort and quality to be worth it though. Honestly I’m sweaty no matter what I wear! I really like this brand I general so definitely recommend!
5 out of 5 stars
1 August, 2025
originally posted on influenster.com
Great for heavy periods!
[This review was collected as part of a promotion.] The absorbency is amazing. Nothing comes through. It lasts for a long time. It fits amazing. It’s very comfortable. Very breathable. If you have heavy periods I definitely recommend buying it.
4 out of 5 stars
30 July, 2025
originally posted on influenster.com
Biker shorts
[This review was collected as part of a promotion.] I received these to review, had I bought them I might have gotten a size up. I was afraid of leakage, so I think they are true to size. They fit more like biker shorts, so it’s nice being able to wear these overnight. I wish the waistband was slightly thicker, but they’re comfortable enough. They did not come with wash instructions, so that needs to be researched online, I wish the tag explained how. Overall I like that these are a more eco-friendly product.
5 out of 5 stars
29 July, 2025
originally posted on influenster.com
Great for overnight
[This review was collected as part of a promotion.] These definitely take some getting used to! I’ve always used tampons to pads but wanted to switch to these for overnight. I really like the material and how thick it feels. The high waist definitely feels nice when you’re bloated and cramping. And they’re true to size.
5 out of 5 stars
23 July, 2025
originally posted on influenster.com
Magical undies
[This review was collected as part of a promotion.] These shorts are a super interesting concept. I was very hesitant to try them out but when I did I had no leaking and no mess. Truly! Would definitely recommend to anyone on the fence.
4 out of 5 stars
23 July, 2025
originally posted on influenster.com
Bulky but does the job!
[This review was collected as part of a promotion.] While these period proof underwear work great, they are a little bulky but still remain comfortable for night time wear. They are easy to clean and seem to hold up well.
5 out of 5 stars
22 July, 2025
originally posted on influenster.com
Comfort!
[This review was collected as part of a promotion.] So comfortable and perfect for someone who wants the extra support! Breathable and fits perfectly. Would highly recommend for someone who wants a backup !
4 out of 5 stars
21 July, 2025
originally posted on influenster.com
Needed these years ago
[This review was collected as part of a promotion.] Wasn't able to get a pic of me wearing these. I'm not a big fan of boy shorts but these were extremely comfortable to wear. Just wish the waist band was a bit thicker but other then that amazing. Kept me protected from making a mess all night...wish I had some more and had these many years ago. A very breathable,light,durable and easy to care for product.
5 out of 5 stars
18 July, 2025
originally posted on influenster.com
Reliable period underwear.
[This review was collected as part of a promotion.] This period underwear are truly reliable. I don’t have to worry about leaks or getting my bedsheets dirty. Super comfortable and true to size . I totally recommend it to everyone.
5 out of 5 stars
18 July, 2025
originally posted on influenster.com
Woah!!
[This review was collected as part of a promotion.] I didn’t know what to expect with period underwear. This pair was just amazing. I felt pretty clean and comfortable. I never leaked through and overall amazed
3 out of 5 stars
18 July, 2025
originally posted on influenster.com
Great comfy
[This review was collected as part of a promotion.] These are really comfortable. Underwear I would wear them by themselves not with any pants mostly to sleep. They kept well throughout the night didn’t have to change I would get your normal underwear size 
4 out of 5 stars
18 July, 2025
originally posted on influenster.com
Recommend
[This review was collected as part of a promotion.] I received this product in exchange for my honest review. I am usually between a size medium and large. And the medium fits perfectly. They are comfortable and breathable. But does not leak.
5 out of 5 stars
17 July, 2025
originally posted on influenster.com
Well made and comfortable
[This review was collected as part of a promotion.] I'm genuinely impressed by the quality of these period boy shorts. They're comfortable and fit pretty true to size. The actual material feels durable and holds up, the pad area in the crotch actually feels like a proper disposable pad. Thick enough that it could handle a normal flow.
3 out of 5 stars
17 July, 2025
originally posted on influenster.com
Not for Me
[This review was collected as part of a promotion.] I’m 5’1”, 105lbs and the XS fit just right. I have never used this type of product before, but it’s not something I’ll be using regularly. If you prefer pads over tampons, I think you’d be more inclined to use.
3 out of 5 stars
16 July, 2025
originally posted on influenster.com
Leak free, but sweaty
[This review was collected as part of a promotion.] I have tried period underwear before but never any this full coverage. I like how they feel protective from any leaks around the middle and especially up the back. I didnt have any issues with shifting or leaks during the night. I have a moderate flow and everything was contained. The only downside is I did find these undies to be a little sweaty. It states the fabric is wicking, but the polyester/platic-y feeling fabric was not the best for hot sleepers.
1 reply from Customer Care team - 4 months ago
While we're glad to hear that you enjoyed great protection with our Leakproof Overnight Boyshort, we're sorry that you had this experience with the fabric. We do have many quality checks in place to ensure that you can use them with ease, and a lot of thought goes into creating features that we think you'll like. However, we certainly understand that preferences can vary from person to person. As well, we can assure you that our products have been thoroughly evaluated to be safe when used as directed. We'll be sure to share your comments with the rest of our team, and we do recommend that you discontinue use of this particular product if this has been your experience. You may want to give another Proof style a try. So that we can learn more and gather some additional details for our Quality and Safety Teams, please give us a call at 866-776-6326 when you have a moment.