# Heavy Flow Reusable Leakproof Period Underwear XL

## What it is

The Heavy Flow Reusable Leakproof Period Underwear XL is a UVA wellness product. Positioned for for-him and for-her. Current price: $27.99 (retail value $31.00). In stock.

## Key facts

- Brand: UVA
- SKU: 100498
- MPN: 100498
- Category: for-him, for-her
- Variants:
  - XL: $27.99, in stock
  - XS: $27.99, in stock
- Condition: new
- Ships to: United States, in plain unmarked packaging
- Returns: unopened items in original packaging within 30 days (hygiene restrictions apply to used products)
- Card statement reads: XDIPX

## Emma's take

All-day leak protection that quietly outperforms your comfiest underwear.

Built for heavy-flow days, this pair relies on UVA's multi-layer LeakBlock construction, an absorbent core, moisture-wicking lining, and a breathable, waterproof TPU layer rated for up to twelve hours of protection. It's designed for anyone who wants period protection that disappears under everyday clothes, at work, at the gym, or overnight. First-time users might pair it with a light backup on the very first heavy day while they get a feel for their flow and fit. Rinse promptly after wear and air dry fully to keep the leakproof layers performing cycle after cycle.

## Specifications

- Absorbency level: Heavy
- Protection: Up to 12 hours depending on flow
- Body fabric: 88% Nylon, 12% Elastane
- 1st layer: 91% Polyester, 9% Elastane
- 4th layer: Breathable, waterproof TPU
- Certification: OEKO-TEX Certified
- Care: Reusable and washable
- Size: XL

## What's in the box

- 1x pair Heavy Flow period underwear, size XL

## Care instructions

- Rinse in cold water right after wear to release trapped flow.
- Skip fabric softener, which can coat the absorbent layers over time.
- Air dry rather than machine dry to protect the elastane and TPU layer.
- Store clean and fully dry to prevent odor buildup between wears.

## Frequently asked questions

## How many hours of leak protection does this heavy-flow pair provide?

Per the spec sheet, the Heavy absorbency style is built for up to twelve hours of protection, depending on your flow. The multi-layer LeakBlock construction, an absorbent core, moisture-wicking lining, and a waterproof TPU layer, is designed to handle the heaviest days without leaks.

## Can I wear this on my heaviest period days instead of a pad?

Yes, this style is the Heavy absorbency option in UVA's lineup, built for the days that need the most coverage. It's common for first-time users to keep a light backup nearby until they learn their own flow and change schedule.

## How do I wash and care for reusable period underwear?

Rinse the garment in cold water right after wear, then wash and air dry rather than using a dryer. Skip fabric softener, since it can coat the absorbent and waterproof layers and reduce how well they perform over time.

## Does this period underwear control odor as well as leaks?

Yes. The product description lists odor control as one of the LeakBlock technology's jobs, working alongside moisture-wicking and leak protection in the same multi-layer core.

## What's the difference between this Heavy style and the Light or Moderate options?

UVA builds the same LeakBlock technology into Light, Moderate, and Heavy absorbency levels, so the difference is how much flow each is designed to hold. This XL pair is the Heavy option, built for the fullest days of your cycle.

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Canonical: https://xdipx.com/products/uva-heavy-flow-period-panties-xl
Last updated: 2026-10-16
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