, SpareParts Theo: Black Single Strap Harness (Size B)

Designed for fashion-forward lovers who crave dual stimulation and a flawless silhouette, the SpareParts Theo Single Strap Harness blends strength with sumptuous sensuality. Handcrafted from luxurious materials, Theo is strong, sexy, and delicately sensual, a statement piece you’ll want to wear as much as use. The classic black version exudes confidence, with a rose-pink alternative for a playful twist. The g-string style keeps lines sleek while delivering secure, comfortable support for prolonged play.

Note: This item is restricted from sale on third-party websites.

• Dual internal vibrator pockets: The patented Theo Harness design places two pockets, one above the O-ring and one below, unlocking enhanced vibration for both wearer and partner without sacrificing comfort or movement.
• G-string style harness: A minimal, secure silhouette that hugs the hips and stays put through dynamic play, making it ideal for extended sessions or adventurous positioning.
• Premium materials with moisture management: High-quality Nylon Spandex with wicking elements draw moisture away from the skin, so you stay comfortable even as the heat climbs.
• Luxurious hardware: Corrosion-resistant brass snaps paired with pearlescent accents add a touch of boutique polish and reliability that lasts.
• Practical pocketing: A convenient condom pocket keeps essentials close at hand, promoting a smooth, spontaneous experience.
• Comfort-first design: Tagless labels and a streamlined fit reduce irritation, so you can focus on sensation rather than distractions.
• Water-friendly and easy to clean: Perfect for shower or bath play, the Theo can be hand- or machine-washed for quick, hygienic upkeep.

Fit, sizing, and specs

The Theo harness is sized for a comfortable, secure feel in Size B, with a waistband range of 35–65 inches and a gusset measurement of 23–38 inches. The O-ring offers flexible compatibility with a range of shaft sizes: diameter 1.25–2 inches (circumference 3.92–6.28 inches). This combination ensures a snug fit for most body types while maximizing vibration delivery to both partners.

Care & maintenance

To keep Theo looking and feeling amazing, rinse after use and either hand wash or machine wash on a gentle cycle. Air dry away from direct heat. The fabric’s moisture-wicking properties and easy-clean materials support hygienic play and long-lasting performance.

Who this is for

Ideal for couples exploring new dimensions of shared pleasure, solo players seeking dual stimulation, and anyone who appreciates a stylish, secure harness that looks as good as it feels. If you want a g-string harness that delivers targeted vibrations without crowding, Theo is your go-to choice.

Why Theo stands apart

Theo isn’t just a harness, it's a dual-stimulation system crafted for comfort, durability, and a dash of luxury. The two internal vibration pockets set it apart from standard harnesses, offering enhanced sensation for both wearer and partner. The combination of moisture-wicking Nylon Spandex, corrosion-resistant hardware, and practical features like a condom pocket and tagless labeling means you’ll reach for Theo again and again for a reliable, deliciously different experience.