Use the product photo and available options below to choose the case or accessory that fits your setup.
Designed around 3mL + 10mL vials. Review the full dimensions below.
3mL + 10mL · Flexible TPU sleeves
Vial Protection Sleeves
A flexible protective layer and comfortable grip for your vials. Choose a 3-pack in 3mL or 10mL.
A flexible protective layer and comfortable grip for your vials. Choose a 3-pack in 3mL or 10mL. Review the complete compatibility, care, and product details below before choosing.
Read the full product descriptionChoose an available color, fit, or pack option below before adding to your bag.
Free shipping over $35See progress in your bag
30-Day Case Fit GuaranteeSupport if the fit is not right
Product description
Everything to know
before you choose.
Vial Protection Sleeves | 3-Pack | 3mL & 10mL | Flexible TPU for Peptide, GLP-1 & Insulin Vials
VialLock Flexible Vial Sleeves — A Better Grip for Your Vials
Add a flexible protective layer around your glass vial with VialLock TPU sleeves. A softly rounded top edge and recessed oval grip areas make the sleeve comfortable to hold while leaving the vial top accessible for use with a separate vial cap.
Choose Clear, White, Green, Yellow, Blue, Purple, Black, or Translucent Pink. Clear TPU has a translucent appearance rather than full optical transparency.
Choose Your 3-Pack
- 3mL: $9.47 for three sleeves, or $10.72 for three sleeves plus three matching caps.
- 10mL: $18.77 for three sleeves, or $20.02 for three sleeves plus three matching caps.
Choose Your Pack
- Sleeves Only: Three vial sleeves. Vial caps are not included.
- Sleeves + Matching Caps: Three vial sleeves plus three VialLock vial caps in the matching color and vial size, for just $1.25 more per pack.
These sleeves work perfectly with VialLock vial caps. Select Sleeves + Matching Caps if you would like caps included with your order. Vials are not included.
Designed for Everyday Organization
- Flexible TPU construction.
- Rounded upper rim and shallow oval grip recesses.
- Closed bottom for coverage beneath the vial.
- Open top accommodates a separate vial cap.
Each pack includes three sleeves in your selected size and color. Vials are not included. Caps are included only when you select Sleeves + Matching Caps.
Size Guide — Measure Your Vial Before Ordering
Capacity labels alone do not guarantee fit: vial dimensions vary between manufacturers. Compare the vial body diameter with the sleeve internal diameter below. Total height and outside diameter describe the sleeve, not the vial.
| Sleeve size | Internal diameter | Total height | Outside diameter |
|---|---|---|---|
| 3 mL | 15.7 mm / 0.618 in | 30.7 mm / 1.209 in | 23.1 mm / 0.909 in |
| 10 mL | 21.89 mm / 0.862 in | 40 mm / 1.575 in | 29.3 mm / 1.154 in |
Do not force a sleeve onto an incompatible vial. Each order includes three sleeves of the selected size; the Sleeves + Matching Caps option also includes three matching caps. Vials are not included. Caps are included only with the Sleeves + Matching Caps option. Photos show the actual printed sleeves on demonstration vials in both sizes. Each order contains three sleeves of one selected size; it is not a mixed-size pack. Vials are not included. Caps are included only with Sleeves + Matching Caps. Dimension images are CAD previews.
Fit & Care
Vial dimensions vary between manufacturers. Choose the sleeve size that matches your vial and check the fit before use. Wash gently with mild soap and warm water, then allow to air dry. Do not boil or autoclave.
These sleeves are 3D printed in small batches; surface texture and color appearance may vary. Intended as a storage and organization accessory. They do not provide a sterile seal or guarantee against glass breakage.
Fit guidance
Know the fit
before you buy.
Use the vial size, capacity, and cap compatibility below alongside the full product description above.
3mL + 10mL
Match the size shown here to the vial size you plan to organize.
Select above
Review the description and the option selector before adding to your bag.
Everyday organization
Use the product details above to confirm this item suits your routine.
Complete your case
A small add-on,
matched to the case.
Add compatible caps when you want an easier way to color-code and cover vial tops. They stay optional, so you choose exactly what belongs in your bag.
- Recommended fit
- Mixed-pack price
- $19.99
- Your choice
- Optional add-on
Verified customer reviews
Why customers
choose VialLock.
Rated 4.95 out of 5 across 176 Judge.me reviews.
“It’s perfect and just what I was looking for!”
“With the assorted colors, I was able to color code...”
“Received quickly. Exactly as pictured. Beautifully crafted case!”
Questions answered
Choose with confidence.
How do I confirm the fit?
Match the vial size shown near the top of this page, then compare your vial measurements with the dimensions in the product description.
Are caps automatically included?
No. Compatible caps are optional and stay unchecked until you choose to add them.
Can I add the case and caps together?
Yes. Select the compatible caps beside the Add to bag button and both items will be placed in your bag for review.
What if I choose the wrong fit?
VialLock’s 30-Day Case Fit Guarantee gives you a clear support path if the case fit is not right.