Glossary
What Is Shore Hardness?
A simple explanation of the technical scale used to describe how soft, firm or flexible a material feels.
Quick answer
Shore hardness is a way of measuring how resistant a material is to indentation. In plain English, it helps describe how soft or firm a material feels. In fantasy toys, Shore hardness can help explain why one silicone toy feels soft and flexible while another feels firmer and more structured.
In this glossary entry
What does Shore hardness mean?
Shore hardness is a technical measurement used to describe how hard or soft a material is. It is measured using a device called a durometer, which presses into the material and measures its resistance to indentation.
A softer material allows more indentation. A firmer material resists indentation more strongly. That is why Shore hardness can be useful when comparing materials that look similar but feel different.
In fantasy toys, this matters because many products are made from flexible materials such as silicone. Two silicone products may both be described as body safe silicone, but one may feel soft and squishy while another feels firmer and more structured.
What is Shore A hardness?
Shore hardness has different scales for different types of materials. Shore A is commonly used for flexible rubbers, elastomers and softer plastics.
In simple terms, Shore A is the scale you are most likely to see when flexible silicone or rubber-like materials are being discussed.
A lower Shore A number usually means a softer material. A higher Shore A number usually means a firmer material. However, the number is only part of the picture. Product shape, size, thickness, texture and design also affect how something feels in real use.
Why Shore hardness matters for fantasy toys
Fantasy toys are often more sculptural than standard adult toys. They may include ridges, curves, scales, knots, tentacle details, bumps or creature-inspired forms.
Firmness affects how those design details feel. A soft material may make texture feel gentler because it compresses more easily. A firmer material may make the same texture feel more pronounced.
This is why firmness should be considered alongside material, size and shape. For more background, read our fantasy toy firmness guide.
Does Shore hardness tell you everything?
No. Shore hardness is useful, but it does not explain the whole product experience.
A listed Shore hardness can help you compare materials, but feel also depends on:
- Product shape
- Total size
- Insertable length, where relevant
- Width or diameter
- Surface texture
- Material thickness
- Whether the toy is solid or hollow
- How flexible the overall design is
A small firm product may feel very different from a large firm product. A smooth firm product may feel very different from a firm product with strong ridges or raised texture.
Shore hardness and texture
Texture and firmness work together.
A soft fantasy toy with ridges may feel more forgiving because the material compresses under pressure. A firmer toy with the same kind of ridges may feel more defined because the material holds its shape more strongly.
Common fantasy toy textures include:
- Ridges
- Scales
- Bumps
- Curves
- Knots
- Tentacle details
- Indented patterns
If you are new to fantasy toys, avoid combining too many intense features at once. A very firm, large, highly textured product may be more challenging than a smaller, smoother or softer option.
Shore hardness and silicone
Silicone can be made in different firmness levels. This is one reason silicone is common in fantasy toys. It can hold detailed shapes while still being produced in softer or firmer versions.
A soft silicone product may feel flexible and compressible. A firmer silicone product may feel denser, more structured and more defined.
For more material background, read Fantasy Toy Materials Explained and our glossary entry on body safe silicone.
Is lower Shore hardness better for beginners?
Not always, but softer or medium firmness products are often easier for beginners to consider.
Lower firmness can make a product feel more forgiving. Medium firmness can offer a balance between comfort and structure. Higher firmness can make texture and shape feel more pronounced.
A beginner-friendly approach is:
- Start with a manageable size.
- Choose soft or medium firmness if unsure.
- Avoid very firm, highly textured designs at first.
- Check the material and care instructions.
- Use a suitable lubricant.
- Stop if anything feels uncomfortable.
Does Shore hardness affect cleaning?
Shore hardness does not replace cleaning advice. A soft toy and a firm toy both need proper care.
However, firmness can affect how strongly surface details hold their shape. A firmer, textured product may need careful cleaning around ridges, grooves and sculptural areas.
Always follow the maker’s cleaning instructions. Check the toy for damage, clean after use and dry fully before storage. For more detail, read How to Clean Fantasy Toys.
Common mistakes
The biggest mistake is treating Shore hardness as the only thing that matters. It is useful, but it should be read alongside size, material, texture and product shape.
Avoid these mistakes:
- Assuming all silicone toys feel the same
- Choosing only by firmness number
- Ignoring texture and shape
- Choosing very firm products as a first option without checking size
- Assuming softer means lower quality
- Assuming firmer means better
Quick checklist
- Shore hardness measures resistance to indentation.
- Lower numbers usually mean softer materials.
- Higher numbers usually mean firmer materials.
- Shore A is commonly used for flexible rubber-like materials.
- Firmness affects how texture feels.
- Size, shape and texture still matter.
- Beginners often suit soft or medium firmness better.
Frequently asked questions
What does Shore hardness mean in simple terms?
It is a way of measuring how soft or firm a material is by testing how much it resists indentation.
What does Shore A mean?
Shore A is a hardness scale commonly used for flexible rubbers, elastomers and softer plastic-like materials.
Is a lower Shore number softer?
Usually, yes. Lower Shore numbers generally mean softer materials, while higher numbers generally mean firmer materials.
Does Shore hardness matter for fantasy toys?
Yes. It can help explain why one fantasy toy feels soft and flexible while another feels firmer and more structured.
Should beginners choose soft or firm fantasy toys?
Many beginners prefer softer or medium firmness products because they are usually more forgiving. Very firm, highly textured or large products may feel more intense.
Sources and further reading
This glossary entry is for general information only and does not replace medical advice. For health concerns, pain, irritation or discomfort, speak to a qualified medical professional.