Size & Fit
Diego the Direwolf Size Guide — All 5 Sizes Compared
18 December 2025 · 7 min read
Diego the Direwolf is one of the slimmer designs in the Bad Dragon catalogue, which makes it stand out in a brand more typically associated with girth-forward fantasy products. Mini at 3cm midpoint is genuinely slim — below average for a realistic dildo, and well below average for a fantasy toy. The defining feature is the knot at the base, which sits above the listed midpoint and gives Diego its silhouette.
That combination — slim shaft, prominent knot — makes Diego one of the more accessible entry points into the Bad Dragon catalogue. The smaller sizes are dimensions that someone new to fantasy toys can approach without significant adjustment, while the knot adds a fantasy-specific feature to work toward over time. For people curious about Bad Dragon but unsure about committing to a girth-heavy first product, Diego is a sensible starting point.
This guide covers all five Diego sizes with measurements, what each size means in practice, and affordable alternatives for people not ready to spend $90+ on platinum silicone.
Diego size comparison
| Size | Insertable | Girth (mid) | Price | |------|-----------|-------------|-------| | Mini | 9.4cm (3.7") | 3.0cm (1.2") | $70 | | Small | 11.9cm (4.7") | 3.8cm (1.5") | $90 | | Medium | 14.7cm (5.8") | 4.8cm (1.9") | $120 | | Large | 19.1cm (7.5") | 6.1cm (2.4") | $150 | | XL | 22.9cm (9.0") | 8.9cm (3.5") | $210 |
All measurements are diameters, not circumferences. Note that these figures cover the shaft midpoint — the knot at the base sits wider than the listed midpoint at every size.
Per-size breakdown
Mini
Mini at 3.0cm midpoint and 9.4cm insertable is genuinely slim — below average for a realistic dildo on both axes. As a first fantasy toy or a first Bad Dragon purchase, this is the most forgiving option in the brand's catalogue. The knot at the base is the feature that makes it recognisably Bad Dragon; the shaft itself is smaller than most beginner-positioned realistic dildos.
Small
Small lands at 3.8cm midpoint, 11.9cm insertable — still below-average on diameter, comfortably moderate on length. This is the most commonly purchased Diego size for people new to fantasy toys, because the dimensions are approachable while the design still reads as recognisably wolf-themed.
Medium
Medium at 4.8cm midpoint sits in the Full bracket, with 14.7cm insertable. This is where Diego stops being a slim toy and starts being a Full-bracket fantasy product. For people comfortable with average to above-average girth in other toys, Medium is a sensible step up.
Large
Large at 6.1cm midpoint is meaningful Full-bracket girth, and 19.1cm insertable adds depth. The knot at the base is more prominent at this size — for people working toward knot use specifically, Large is where that feature becomes genuinely substantial.
XL
XL is a sharp jump — 8.9cm midpoint and 22.9cm insertable. The shaft moves from Full into Large bracket territory, and the knot scales accordingly. Most XL owners have used the smaller sizes first; this isn't a sensible jump from Medium directly.
The knot is the feature
Diego's defining shape feature is the knot at the base, which sits wider than the listed midpoint at every size. The midpoint figure tells you about the shaft; the knot is its own dimension and a separate consideration for whether you'll use the toy at full insertion. Many Diego owners use the toy at shaft depth and treat the knot as a goal to work toward over time. That's a normal pattern with knotted designs and not a failure to "use the toy properly".
Budget alternatives
Diego's slimmer end has fewer direct analogues at the budget price point — most Amazon fantasy toys cluster around the 5–6cm midpoint range, which lines up better with Small or Medium Diego than with Mini.
- Curved Alien Dragon Monster Fantasy Dildo 8in — 16.5cm insertable, 5.0cm mid. $15.99. Closer to a Medium Diego at the midpoint with more length.
- Beginner Dragon Knotted Fantasy Dildo — 16.5cm insertable, 5.7cm mid. $17.98. Between Medium and Large Diego at the midpoint, with a knot.
- Fantasy Monster Knotted Dog Dragon Dildo 9in — 19.05cm insertable, 6.78cm mid. $22.99. Closest budget match to a Large Diego, knot included.
- Inflatable Monster Fantasy Knot Dildo 10in — 23.5cm insertable, 5.4cm mid. $59.99. Length comparable to a Large Diego, slimmer at the midpoint, with an inflatable knot mechanism.
A note on material: most Amazon fantasy toys at these prices are TPE or PVC rather than platinum-cured silicone. TPE warms up faster and is softer but porous — replace it more often and don't share it. Bad Dragon is platinum silicone, non-porous and more durable. Different material, different feel, different price.
Find your size
If you want to filter by exact insertable length and diameter across all retailers at once, that's exactly what our tool is built for. Browse fantasy dildos by measurements →
You can browse all Bad Dragon fantasy dildos on Measured Pleasure filtered by insertable length and diameter.


