Riff Underarm Sweat Pads for Sweat Stain & Odor Protection, Black, 20 Sheets (10 Pairs)

Riff Underarm Sweat Pads are Japanese adhesive underarm pads designed to help protect clothing from sweat stains, yellowing, and odor. Kobayashi Pharmaceutical states that they are attached directly inside clothing to help stop underarm sweat from reaching the fabric, making them a practical daily solution for shirts, blouses, and suits.

The white version uses a mesh suction sheet that quickly draws sweat away from the surface, helping keep the pad feeling drier for longer. Kobayashi also highlights its ion antibacterial deodorizing effect to help reduce sweat odor during wear.

These pads use a 3-layer construction to absorb sweat effectively: a top sheet that quickly pulls in sweat, an absorbent middle sheet, and a stopper sheet that helps prevent leakage. The product is also described as thin, flexible, and slit-cut for a better fit, helping reduce shifting or wrinkling inside clothing.

Key Features

• Helps protect clothing from sweat stains and yellowing.
• Helps reduce sweat odor with ion antibacterial deodorizing effect.
• Mesh suction sheet helps pull sweat in quickly and keeps the surface drier.
• 3-layer structure for reliable sweat absorption.
• Slit design helps the pad fit better and resist shifting.
• Thin sheet, about 1 mm, for more comfortable wear.

How to Use
Peel off the body-side seal first, stretch the armhole area of the garment, and align the pad with the curve of the sleeve opening before pressing it into place. Then remove the remaining release paper and secure the rest of the pad firmly. Use one pair for one wear. Do not wash, dry, or iron clothing while the pads are still attached.

Materials
Polyester, Rayon, Polypropylene, Polyethylene. Retail sources differ slightly on how the material breakdown is presented, but these are the repeatedly disclosed component materials for the white Riff underarm pad.

Product Details
Weight: Not clearly stated in the sources reviewed.
Product type: Adhesive underarm sweat pads / sweat stain prevention sheets.
Color: Black. 
Quantity: 20 sheets (10 pairs).
Approximate Size: 11 × 12 cm.
Approximate Package Size: 101 × 45 × 155 mm.
Structure: 3-layer sweat-absorbing construction.
Surface type: Mesh suction sheet.
Thickness: Approx. 1 mm.
Brand: Riff.
Manufacturer: Kobayashi Pharmaceutical.
Country of origin: Japan