We get asked this all the time. The short answer: both are great, but they suit different occasions. Here's the full breakdown so you can decide with confidence.
## What the thickness actually means
Neoprene is the rubbery foam material that makes stubby holders work — it insulates your drink and keeps your hand dry. The thickness is measured in millimetres.
**3mm** is thinner and more flexible. It folds completely flat, making it easy to store and post. It's lighter in the hand and works great as a large-run promotional item or a casual event favour.
**5mm** is noticeably thicker and heavier. It holds its shape better, insulates slightly more effectively, and feels more premium when someone picks it up. It's the go-to choice when you want a keepsake rather than a giveaway.
## Side by side comparison
| | 3mm | 5mm |
|---|---|---|
| Feel in hand | Light, flexible | Solid, substantial |
| Insulation | Good | Better |
| Stores flat? | Yes | No |
| Best for | Large events, promos, casual | Weddings, milestone birthdays, gifts |
| Price | Lower | Slightly higher |
## Edge finish options (and why they matter)
Regardless of thickness, you can choose different edge finishes:
**Foldable / Standard** — no stitching, the edges are heat-sealed. Clean and simple. Available in 3mm.
**Overlocked** — a looped stitch goes around the edge, reinforcing it. Looks and feels more finished. Available in both 3mm and 5mm.
**Fully stitched** — stitched on all four sides, sits perfectly flat and square. The most premium finish. Great for weddings and corporate gifts.
## Which one is right for you?
**Choose 3mm if:** you're ordering 50+ for a large event or sports club, budget is a priority, or you need them to arrive in the mail without taking up much space.
**Choose 5mm if:** it's a wedding, milestone birthday, or any occasion where the recipient is meant to keep it. The extra thickness makes it feel like a proper gift, not a freebie.
**Still not sure?** The 5mm overlocked is our most popular option overall — it hits the sweet spot between quality and cost, and works well for almost any occasion.
Comments