Strap Ons and Harnesses

Collection: Strap Ons and Harnesses

Explore adjustable SEI MIO strap ons and harnesses designed for comfortable, confident pegging and penetrative play. Choose a complete set with a silicone dildo or a versatile harness for your own compatible toys.

Cocked and Loaded - Deluxe Strap-on Harness with Posable DildoCocked and Loaded - Deluxe Strap-on Harness with Posable Dildo2 for £100
Perfectly Pegged - Adjustable Strap on Harness with DildoPerfectly Pegged - Adjustable Strap on Harness with Dildo2 for £75

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Strappers Delight - Adjustable Strap-On HarnessStrappers Delight - Adjustable Strap-On Harness2 for £35
Sale price£19.99

Explore SEI MIO Strap Ons and Harnesses

Strap ons and harnesses give couples the freedom to explore pegging, role reversal and different forms of penetrative play. The SEI MIO collection includes complete strap on sets with silicone dildos and an adjustable harness for customers who already own a compatible toy.

Cocked and Loaded includes a seven-inch posable dildo and padded back support, while Perfectly Pegged offers a more compact five-inch dildo. Strappers Delight is supplied without a dildo, allowing you to pair the harness with a suitable toy from your existing collection.

Choose the Right SEI MIO Strap On Harness

Consider the included dildo, harness design and level of support when comparing the SEI MIO products. An adjustable fit helps keep the dildo correctly positioned and allows the wearer to move with greater confidence.

Cocked and Loaded

Cocked and Loaded is a complete strap on harness set featuring a seven-inch velvet-smooth silicone dildo. The bendable dildo can be positioned to suit different bodies and angles, while the padded back support helps distribute pressure during play.

The fully adjustable harness is designed to fit most body types. It also comes with three silicone O-rings, allowing the supplied dildo to be exchanged for other compatible sizes and styles.

Choose Cocked and Loaded if you want a longer posable dildo, additional rear support and the flexibility to change toys in the future.

Perfectly Pegged

Perfectly Pegged includes an adjustable strap on harness and a five-inch velvet-smooth silicone dildo. Its shorter dildo may appeal to couples who want to explore shallower penetration or gradually build their confidence with strap on play.

Three silicone O-rings are included for use with most compatible dildos. The harness also features a small pocket that can hold a bullet vibrator, which is sold separately.

Choose Perfectly Pegged if you want a complete strap on set with a more compact dildo and the option to introduce vibrations.

Strappers Delight

Strappers Delight is a fully adjustable strap on harness supplied without a dildo. It includes three silicone O-rings that accommodate a selection of compatible dildos, making it a flexible option for customers who already own suitable toys.

A front pocket can hold a small bullet vibrator, which is not included. This allows vibrations to be added for extra stimulation without replacing your chosen dildo.

Choose Strappers Delight if you already have a harness-compatible dildo or want greater freedom to select the shape, length and girth of your toy separately.

How to Fit a SEI MIO Strap On Harness

Step into the harness and adjust the waist and thigh straps until it feels secure without digging into the skin. The harness should remain stable when you walk, bend and gently move your hips.

Select the appropriate silicone O-ring and attach it to the front of the harness before securing the dildo. The O-ring should hold the toy firmly without excessively stretching or damaging the material.

Test the complete setup before partnered play. If the dildo shifts noticeably, tighten the harness gradually or select a more suitable O-ring.

Using a Strap On Comfortably

Discuss consent, boundaries and preferred depth before beginning. The receiving partner should be able to ask for changes or stop play at any point.

Apply plenty of water-based lubricant to the dildo and the receiving partner. Start slowly with shallow movements, allowing the body time to adjust before increasing depth or pace.

Beginning with the wearer lying on their back can allow the receiving partner to control the angle and depth. Once both partners feel comfortable, explore other positions while continuing to communicate.

Stop immediately if either partner experiences sharp pain, numbness, bleeding or persistent discomfort. Anal penetration requires particular care because the anus does not produce its own natural lubrication.

Adding a Bullet Vibrator

Perfectly Pegged and Strappers Delight both feature a small pocket designed to accommodate a bullet vibrator. Insert a compatible mini bullet before putting on the harness, then check that it remains secure and does not create uncomfortable pressure.

The bullet vibrator is not supplied with either harness. Check the dimensions of your chosen vibrator and test the setup before partnered play.

Cleaning SEI MIO Strap Ons and Harnesses

Remove the dildo, O-ring and any bullet vibrator from the harness before cleaning. Wash the supplied silicone dildo according to its care instructions, using warm water and a suitable sex toy cleaner where recommended.

Wipe the harness and O-rings using a method appropriate for their materials. Allow every component to dry completely before storing the dildo separately in a clean, cool and dry place.

Inspect the straps, stitching, buckles, O-rings and dildo before every use. Replace any component that has split, stretched excessively or otherwise become damaged.

Frequently asked questions

Still looking for an answer?

Cocked and Loaded includes a seven-inch posable silicone dildo and padded back support. Perfectly Pegged includes a shorter five-inch silicone dildo and a pocket for a separately purchased bullet vibrator.

Yes. Cocked and Loaded and Perfectly Pegged each include three silicone O-rings compatible with most suitable dildos. Check that the chosen O-ring holds the replacement dildo securely before use.

Perfectly Pegged and Strappers Delight have a small front pocket designed to hold a compatible bullet vibrator. The vibrator is not included and should be fitted securely before the harness is worn.

Perfectly Pegged has the shorter included dildo at five inches. Cocked and Loaded comes with a seven-inch dildo, while Strappers Delight does not include a dildo.