o.b. Period Underwear Heavy Flow XS/S 1 Pack

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o.b. Period Underwear Heavy Flow XS/S is a reusable menstrual brief designed for comfortable protection during heavy periods. You receive one pair featuring FormFlex design, an absorbent core and a breathable waterproof layer for up to 12 hours of leak protection.

Pack Contains

1 x reusable period brief in size XS/S.

Key Features

• Designed for heavy menstrual flow
• Provides up to 12 hours of protection
• FormFlex design adapts comfortably to the body
• Absorbent core helps contain menstrual flow
• Breathable waterproof layer and sealed side seams help prevent leaks
• Machine washable and reusable

Product Details

• Brand: o.b.
• Product type: Reusable period underwear
• Size: XS/S
• Suggested fit: EU 34–38, approximately 88–101cm hip measurement
• Flow: Heavy
• Colour: Black
• Pack size: One pair

Composition

Main material: 87% nylon and 13% elastane. Gusset lining: 77% polyester, 13% cotton and 10% nylon. The upper layer next to the skin is made with 100% organic cotton.

Directions

Machine wash before first use. After wearing, rinse in cold water until the water runs clear. Machine wash at 60°C for at least 30 minutes using normal detergent; use liquid detergent when washing below 60°C. Wash with similar colours and hang to dry.

Warnings & Care

• Do not use fabric conditioner or bleach.
• Do not tumble dry or iron.
• Follow the care instructions to maintain hygiene and product performance.
• If local irritation or other symptoms occur, seek medical advice before using the product again.

Frequently Asked Questions

How many pairs are included?
Each pack contains one pair of o.b. period underwear.

Is this size suitable for heavy flow?
Yes. This version is designed for heavy menstrual flow and offers up to 12 hours of protection, depending on individual flow.

Can the underwear be machine washed?
Yes. It can be machine washed at up to 60°C and should be hung to dry.

Choose o.b. Period Underwear for reusable heavy-flow protection that feels like regular underwear. Its washable construction provides a practical alternative to disposable menstrual products.