Adjustable Strap-On Harness — Cocked And Loaded Set by Sei Mio

Adjustable Strap-On Harness User Guide & Play Styles

First-timer couples: why this beginner strap-on harness is the right starting point

Approaching pegging for the first time can feel like a lot — so Sei Mio designed this silicone strap-on harness to remove as many barriers as possible. The slimline 6.5-inch silicone dildo is approachable without being intimidating, and the fully adjustable one-size harness means no fumbling with fit mid-moment. The three included O-rings let you stay with the included dildo while you find your rhythm, then swap to a different size when you’re both ready. For couples exploring this territory together, reading our guide to using a strap-on beforehand can help ease nerves and set expectations. Keep the body-safe silicone material clean with warm water and a toy cleaner — simple maintenance means you spend more time enjoying and less time worrying.

Adding sensation: using the vibrating pocket during partnered play

One underrated feature of this harness-compatible set is the built-in front pocket, sized to hold a bullet vibrator. Slipping a vibrating toy into the pocket during use transforms a pegging session into a layered experience for the wearer — the harness does the structural work while the bullet adds stimulation that’s hands-free once positioned. This latex-free strap-on harness is also worth pairing with a quality water-based lubricant; for tips, check out our lubricant application guide. Explore more couples-friendly options in our full Couples Pleasure collection.