The Crocs glossary explains every Crocs word in one place: materials, fits, sizes, styles and slang. Click a term in any guide on this site and you land on its entry here.
B
Baya
A simple Crocs clog line with a lighter, budget-friendly design and a small Crocs logo on the side.
Bistro
A closed-top Crocs work clog made for kitchens and hospitals, with a slip-resistant sole.
C
C and J sizes
Kids’ sizes. C means child (toddler and little kids), J means junior (bigger kids). Kids’ sizes by age.
Classic Clog
The original Crocs shape: rounded toe, vent holes and a heel strap. The most popular Crocs style.
Collab
A limited Crocs made with another brand, artist or franchise, such as Balenciaga, KFC or Pixar.
Croc-off
A slang word for a lookalike or copy of Crocs. Lookalikes without the Crocs name or logo are often legal; fakes that copy the logo are not.
Crocs Lock
Crocs’ name for the slip-resistant tread used on some work styles.
Crocs, Inc.
The company that makes Crocs, based in Broomfield, Colorado. What are Crocs?
Croslite
The closed-cell foam resin Crocs are made of. It is light, soft and does not soak up water. Full guide.
D
Dual Comfort
Crocs’ name for styles that pair soft LiteRide foam with Croslite, such as the Duet Max II.
E
Echo
A Crocs line with a sculpted, streetwear look, including the Echo Clog and Echo Boot.
F
Flip
A Crocs flip-flop with a toe post.
Foam Creations
The Quebec, Canada company whose foam clog design became the first Crocs. Crocs bought it in 2004.
H
HEYDUDE
A casual shoe brand owned by Crocs, Inc. since 2022.
I
Iconic Crocs Comfort
Crocs’ marketing name for the feel of its classic foam footwear: light, cushioned and roomy.
J
Jibbitz
Charms that clip into the holes of Crocs. Crocs bought the Jibbitz company in 2006. Full guide.
L
Lined
Crocs with a soft, fuzzy lining for warmth, such as the Classic Lined Clog. Lined pairs feel snugger than unlined ones.
LiteRide
A softer foam Crocs uses in its LiteRide styles, such as the LiteRide 360. Crocs presents it as softer and lighter than standard Croslite.
M
M/W sizing
Unisex Crocs sizes show both a men’s (M) and women’s (W) size, such as M7/W9. The women’s number is two higher than the men’s.
Mega Crush
A very chunky, tall Crocs platform with a deep sole.
P
Pivoting heel strap
The strap on a Classic Clog. It turns on two rivets, so it can sit behind your heel or rest over the front of the shoe.
Platform
A Crocs style with a thicker sole for extra height, such as the Classic Platform. Platform heights.
R
Rivet
The round button that holds the heel strap to the side of the clog. On real Crocs it carries the Crocs logo.
Roomy fit
A fit with extra room around the foot. Most Classic-style Crocs are roomy, which is why many people size down when between sizes.
S
Slide
An open-toe, backless Crocs sandal with one wide strap across the top.
Sport mode
Wearing the heel strap behind your heel. It holds the clog on your foot for walking and light activity.
Standard fit
A closer, more shoe-like fit used on some Crocs styles. Check the fit note on the product listing.
V
Ventilation ports
The holes on top of a Crocs clog. They let air in, let water out, and hold Jibbitz charms.
W
Whole sizes
Most Crocs come in whole sizes only. If you are a half size, size down for a snug fit or up for room and socks.