Choosing Your First Strap-On

A strap-on is two products pretending to be one: a harness that holds, and a dildo that does the work. Buying them as a set is convenient, but understanding them separately is what gets you a good fit.

Harness styles

• Two-strap (thigh harness). Straps sit around the waist and each thigh. Leaves the wearer's vulva exposed, which allows a vibrator to be added. Very stable.
• Jock or three-strap. Adds a strap between the legs. Extremely secure, slightly more coverage, marginally harder to get on.
• Brief or boxer style. Looks and feels like underwear. Comfortable and easy for beginners, though slightly less rigid at high force.
• Thigh or chest harness. Mounts the dildo somewhere other than the hips. Useful for accessibility, mobility limits, or variety.

Ring size is the number that matters

Harness O-rings come in a set — commonly 1.5", 1.75", and 2". The ring must match the base diameter of your dildo, not its widest point. Too large and the toy droops or slips through. Too small and it will not seat at all.

Buy a harness that ships with interchangeable rings. It future-proofs the purchase.

Dildo sizing for a first toy

The near-universal beginner error is buying something modelled on average penis dimensions. The rectum is not the vagina, and the first time is not the tenth time.

• Insertable length: 4 to 5 inches is plenty. Depth is rarely the limiting factor.
• Diameter: 1 to 1.25 inches. This is smaller than most people expect and is the right call.
• Shape: a gently curved shaft aims at the prostate. A tapered tip makes entry far easier.
• Base: flared, always, and sized to your harness ring.

You can buy a second, larger toy later for the cost of one bad first experience.

Materials

• Platinum-cure silicone. The standard for body-safe toys. Non-porous, sterilisable, durable. Worth the price difference.
• TPE/TPR and jelly. Porous, cannot be fully sterilised, and can degrade. Avoid for anal use.
• Glass and stainless steel. Non-porous and excellent for temperature play, but rigid and unsuitable for most harnesses.

Silicone toys require water-based lubricant. Silicone lubricant can bond to and degrade the surface of a silicone toy.

A sensible first kit

A brief-style harness with interchangeable rings, a 4.5" tapered silicone dildo around 1.1" diameter, a large bottle of thick water-based lubricant, a small plug for warm-up, and a toy cleaner. That is the whole list.