SpareParts Tomboi Nylon Briefs Harness Red/Black Size M
The SpareParts Tomboi Nylon Briefs Harness Red/Black Size M flips the script on traditional strap-on harnesses with a sporty nylon brief and a firmly anchored O-ring. Built for assertive play when you want it, how you want it, this Tomboi Nylon Briefs Harness fuses bold red and black color blocking with a contoured athletic cut that stays put during vigorous use. The stretch nylon fabric moves with you, eliminates excess bulk, and puts control front and center.
Standout Features
- Built-in O-ring: Securely fits dildos with a flared base up to 1.75 inches in diameter, no separate parts needed.
- Stretch nylon construction: Breathable, four-way stretch fabric hugs your frame without restricting movement.
- Athletic waistband: Wide elastic waistband and leg openings stay in place, even during fast-paced action.
- Bold aesthetic: Red front panel with black sides and back delivers a provocative visual punch.
- Size M specific fit: Designed for waist sizes 32-38 inches (check size chart for detailed measurements).
Technical Specifications
| Material | Nylon/spandex blend |
| O-ring internal diameter | 1.75 inches (4.45 cm) |
| Waist fit | 32-38 inches (81-97 cm) – Size M |
| Color | Red/Black |
| Care | Machine wash cold, air dry |
| Weight | 4.2 oz (approx.) |
Dildo Compatibility & Setup
The Tomboi Nylon Briefs Harness uses a non-replaceable stitched O-ring with an inner diameter of 1.75 inches. It works with any flared-base dildo or dong that has a shaft diameter at or slightly below this measurement. For the most secure grip, use toys with a pronounced base flange. Silicone, glass, metal, and ABS dildos all pair well. Avoid dildos without a flared base. The stretch fabric applies gentle pressure to keep toys in place without sliding. If you are using a heavily textured or extra-long dong, consider adding a drop of water-based lubricant to the O-ring rim for easier insertion.
Materials & Care
The harness briefs are made from a soft nylon/spandex blend that wicks moisture and dries quickly. The O-ring is a durable plastic composite that won’t warp with use. To clean, machine wash cold with like colors on a gentle cycle. Tumble dry low or air dry. Do not bleach or iron. Frequent washing preserves the fabric’s stretch and color intensity.
What's Included
- 1x SpareParts Tomboi Nylon Briefs Harness Red/Black Size M
- No dildo included, sold separately.


















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