Quick answer: A strap-on is two parts, a harness and a dildo, and most problems come from mismatched parts. For a first setup, choose an adjustable harness, a silicone dildo with a flared base that fits it, and a conservative size. If you are entirely new, a starter kit that pairs a harness with a compatible dildo removes the guesswork. Browse the Strap-Ons collection and check compatibility details on each listing.
Harness types compared
| Harness | How it holds the dildo | Stability | Compatibility | Best for |
|---|---|---|---|---|
| O-ring | Dildo base sits behind a fixed ring | Firm, secure hold | Only dildos whose base suits the ring size; some harnesses include swappable rings | Buyers who know their dildo size |
| Universal or strap-held | Adjustable straps grip the base | Slightly less firm in vigorous use | Wider range of bases | Beginners |
| Thigh harness | Straps around the upper thigh | Varies by design | Check base fit as with any harness | Positions where a hip harness is awkward, or when the wearer wants their genitals accessible |
| Strapless | Bulb held in by the wearer's pelvic muscles | Depends on the wearer's control | One-piece toy, no harness | Experienced couples wanting both partners stimulated |
Decision guide
- Pick a harness material. Vegan leather looks polished, wipes clean and holds its shape. Nylon webbing is lighter, washable and adjusts across a wide range of body sizes.
- Choose a harness-ready dildo. The base must be flared and wide enough to sit behind the ring or be gripped by the straps. Broad, flat suction-cup bases often work well. Narrow bases slip through.
- Favor silicone. It is body-safe, easy to clean and holds its shape. Dual-density silicone, with a firmer core and softer outer layer, balances a natural feel with enough rigidity for control.
- Size conservatively. Starting too large is the most common mistake. The original guide suggests around 5 to 6 inches of insertable length with moderate girth for first-time strap-on or pegging play. You can size up later without replacing the harness.
Pegging considerations
For pegging, a dildo with a gentle upward curve tends to angle toward the prostate, which sits a few inches inside toward the front of the body, more easily than a straight shaft. Use generous lubricant and reapply often; thick water-based lubes are a common choice for anal play.
Getting stimulation for the wearer
A standard harness gives the wearer little direct stimulation. Options include a harness with a pocket for a small bullet vibrator, a thigh harness, or a strapless design once both partners have some experience.
FAQ
How do I check that a dildo will fit my harness?
Compare the dildo's base width with the harness ring's inner diameter or strap range, using the measurements on both listings. The base should be wider than the ring opening while the shaft just above it passes through comfortably. If either listing lacks measurements, choose a universal harness or a matched kit.
Should we buy a kit or separate pieces?
A kit is the simplest way to try strap-on play because the parts are matched and sized for beginners. Separate pieces make more sense once you know what harness style and dildo shape you prefer.
Which lubricant should we use with a silicone dildo?
Water-based lubricant is the usual safe pairing. Silicone-based lube can damage some silicone toys, so check the toy's care instructions before using it.
