What are penis panties and how do they differ from a strap-on? A strap-on is two parts: a harness with straps or a ring, and a dildo that fits into it. Penis panties are one piece. The whole lower body is a stretch panel of silicone shaped like briefs, with the shaft molded into the front. You pull them on like underwear. There are no buckles to adjust and no base plate between you and your partner. The Power Briefs add a motor, so the shaft thrusts and vibrates without the wearer moving.
Power Briefs: a thrusting shaft built into silicone briefs
The Master Series Power Briefs replace the usual harness and dildo with a single molded silicone garment. The briefs stretch to fit waists from 23.5 to 36.5 inches and hips from 31 to 39 inches. The shaft is sculpted into the front with raised veins and a full head, and gives 6.3 to 6.9 inches of insertable length at 1.8 inches wide.
A motor drives the shaft through 3 thrusting modes, so the wearer can stay still. Vibration adds 9 functions, 3 speeds and 6 patterns, used with the thrust or instead of it. The briefs are rechargeable and splash-proof and made from phthalate-free silicone.
Best for: For strap-on wearers who dislike harness straps and want a more realistic, skin-like look for pegging, gender play or partner sex. The motorized thrust suits wearers who want the toy to set the rhythm. At 1.8 inches wide the shaft is thick, so the receiving partner should be comfortable with size.
At a glance: 3 thrusting modes · 9 vibration functions · 6.3 to 6.9 in insertable · No harness needed · Rechargeable
Key features
| One-piece silicone briefs |
The shaft is built into a stretch silicone torso, with nothing to size or fasten. |
| 3 thrusting modes |
Motor-driven movement lets the wearer stay still while the shaft keeps time. |
| 9 vibration functions |
Three speeds and 6 patterns, used beside the thrust or in place of it. |
| Realistic sculpting |
Raised veins and a full head on a finish that looks like skin. |
| Rechargeable |
Charging replaces batteries entirely. |
| Splash-proof |
Handles cleanup under running water. |
Specifications
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Fits waist: 23.5 in to 36.5 in
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Fits hip: 31 in to 39 in
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Insertable length: 6.3 in to 6.9 in
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Widest insertable diameter: 1.8 in
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Thrusting modes: 3
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Vibration: 3 speeds, 6 patterns
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Power: Rechargeable
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Waterproof: Splash-proof
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Material: Silicone (phthalate-free)
How to use
Charge the briefs before first use. To get them on, dust your skin and the inside of the silicone with talc-free baby powder or pure cornstarch, as the distributor advises. Step in and roll the silicone up your legs and over your hips. Roll, do not pull, because pulling is what tears silicone. Settle the waistband and check that the shaft sits centrally. Coat the shaft with water-based lubricant. Start with a thrusting mode on its own, then add vibration if wanted. Keep silicone lubricant well away from the briefs.
Care
- Use water-based lubricant only; silicone lubricant damages the material.
- Wash with warm water and toy cleaner after each use, inside and out.
- They are splash-proof: rinse under the tap but do not soak, boil or machine wash them.
- Pat dry, then dust lightly with cornstarch before storing to stop the silicone sticking to itself.
- Store flat in a cool, dry place away from sunlight and other toys.
More on materials in our material safety guide.
Frequently asked questions
What size do the Power Briefs fit?
They fit waists from 23.5 to 36.5 inches and hips from 31 to 39 inches. The silicone stretches across that range. Measure both waist and hips, since the briefs need to grip the body to hold the shaft steady.
How big is the shaft?
The insertable length is 6.3 to 6.9 inches, changing as the shaft thrusts, and the widest insertable diameter is 1.8 inches. That is a large, thick shaft, so use plenty of water-based lubricant.
How are they different from the Ramming Briefs?
Power Briefs have 3 thrusting modes and fit waists from 23.5 to 36.5 inches. Ramming Briefs have 9 thrusting modes, a molded sack and a rear opening so the wearer can also receive, and are sold by size.
How do I put them on without tearing them?
Powder your skin and the inside of the briefs with talc-free baby powder or pure cornstarch first. Then roll the silicone up the body a little at a time. Avoid yanking or gripping with fingernails.
Can I wash them under water?
They are splash-proof, and the distributor says that covers cleanup under running water. Do not submerge them or leave them soaking. Wash with warm water and toy cleaner, then dry them thoroughly.
Skip the harness
Add the Master Series Power Briefs Thrusting Silicone Penis Panties to your cart for plain packaging, privacy-safe billing and a mystery gift in every order.
For adult use only. Read the instruction manual before first use. Specifications are the manufacturer's.
