Kynvar – Knotted Dog Cock Sleeve & Penis Sheath

Kynvar combines a dog-inspired profile with a prominent rounded knot and molded fur-like detailing around the base. Pink vein accents follow the pale body, while the integrated ball ring completes the wearable construction. This knotted cock sleeve adds exterior volume and a different shape for couples looking to vary their intimate routine.

The open-ended sleeves come in S and M, with different shaft openings, knot widths and ball-ring dimensions. The closed-tip cock sheath is a separate construction with its own measurements, rather than an open sleeve with a covered tip. Compare all three options before choosing this sex toy for men.

Separate realistic dildos shown in demonstration photos illustrate positioning and are not included.

Open-Ended S Measurements

• Overall height: 5.39 in (13.7 cm).
• External shaft span marked above the base: 4.65 in (11.8 cm).
• Upper opening diameter: 0.75 in (1.9 cm).
• Internal shaft opening at the base: 0.94 in (2.4 cm).
• Ball-ring opening diameter: 1.10 in (2.8 cm).
• Maximum exterior knot width: 1.73 in (4.4 cm).
• Other exterior widths shown from top to bottom: 1.14, 1.54 and 1.46 in (2.9, 3.9 and 3.7 cm).
• Base footprint: 2.99 × 1.93 in (7.6 × 4.9 cm).
• Approximate weight: 158 g.

Open-Ended M Measurements

• Overall height: 6.73 in (17.1 cm).
• External shaft span marked above the base: 5.67 in (14.4 cm).
• Upper opening diameter: 0.94 in (2.4 cm).
• Internal shaft opening at the base: 1.42 in (3.6 cm).
• Ball-ring opening diameter: 1.89 in (4.8 cm).
• Maximum exterior knot width: 2.09 in (5.3 cm).
• Other exterior widths shown from top to bottom: 1.46, 1.85 and 1.85 in (3.7, 4.7 and 4.7 cm).
• Base footprint: 3.62 × 2.36 in (9.2 × 6 cm).
• Approximate weight: 280 g.

Closed-Tip Sheath Measurements

• Overall height: 6.97 in (17.7 cm).
• External shaft span marked above the base: 5.91 in (15 cm).
• Additional vertical span marked in the diagram: 5.20 in (13.2 cm).
• Internal shaft opening at the base: 1.61 in (4.1 cm).
• Ball-ring opening diameter: 1.81 in (4.6 cm).
• Maximum exterior knot width: 2.20 in (5.6 cm).
• Other exterior widths shown from top to bottom: 1.42, 1.93 and 1.81 in (3.6, 4.9 and 4.6 cm).
• Base footprint: 3.74 × 2.48 in (9.5 × 6.3 cm).

Measurements are approximate and describe the unstretched product. Exterior widths are not internal diameters. Overall height does not specify added length, and the additional vertical span does not establish usable internal depth or maximum stretch.

Explore our fantasy cock sleeves and penis sheaths for more wearable designs. Compare the measurements and choose your Kynvar knot penis sleeve or closed-tip sheath.