This Merrell Hydro Moc Sizing Guide uses direct comparison photos where I put my Merrell Hydro Moc shoes next to other popular shoes so you can see the difference in sizing. I will also discuss things like weight, width, flexibility, and sole height. After trying these shoes, do Merrell Hydro Mocs run big or small?
Merrell Hydro Mocs fit true to size for most people. However, it is worth noting that they do fit just a little bit longer than Crocs. I would suggest you view my side-by-side comparison photos where I compare Merrell Hydro Moc sizing to the sizing of other popular brands. Click here to view men’s side-by-side sizing photos. Click here to view women’s side-by-side sizing photos.
Merrell Hydro Mocs often get compared to Crocs. In my experience, Merrell Hydro Mocs fit slightly longer than Crocs Classics, but are not as wide as Crocs Classics. I wouldn’t describe Merrell Hydro Mocs as fitting narrow, but Crocs are a little bit wider (Crocs have a wider design than most types of shoes).
In my experience, the Merrell Hydro Moc shoes have a comfortable fit that is very lightweight and flexible. I actually think these Merrell Hydro Mocs provide more cushioning under the foot than Crocs.
Let’s start this Merrell Hydro Moc Sizing Guide by looking at helpful direct side-by-side comparison photos of my Merrell Hydro Moc shoes compared to other popular shoes. To read about the sizing of other options, visit my Merrell Shoe Sizing Guide.
Merrell Hydro Moc Sizing Photos for Men
Click here to jump directly to the women’s sizing photos. All men’s photos below use a size 12 shoe.
Merrell Hydro Moc vs Crocs Sizing
Merrell Hydro Moc vs Crocs All Terrain Sizing
Merrell Hydro Moc vs Skechers Go Walk Sizing
Merrell Hydro Moc vs Hey Dude Wally Sox Sizing
Merrell Hydro Moc vs Vans Slip On Sizing
Merrell Hydro Moc vs Adidas 2k Boost Sizing
Merrell Hydro Moc vs Keen Uneek Sizing
Merrell Hydro Moc vs Keen Newport Sizing
Merrell Hydro Moc vs Vibram KSO Sizing
Merrell Hydro Moc vs Xero Sizing
Merrell Hydro Moc vs Under Armour Charged Bandit Trek 2 Sizing
Merrell Hydro Moc vs Reebok Classics Sizing
Merrell Hydro Moc vs Adidas Terrex Sizing
Merrell Hydro Moc vs Vans Old Skool Sizing
Merrell Hydro Moc vs Saucony Shadow 6000 Sizing
Merrell Hydro Moc vs New Balance Fresh Foam 860 Sizing
Merrell Hydro Moc vs Nike Blazer Sizing
Merrell Hydro Moc vs Nike Air Max Excee Sizing
Merrell Hydro Moc vs Nike Air Max 90 Sizing
Merrell Hydro Moc vs Nike Air Force 1 Sizing
Merrell Hydro Moc vs Converse Chucks Sizing
Merrell Hydro Moc vs Adidas Superstar Sizing
Merrell Hydro Moc vs New Balance 1300 Hiker Sizing
Merrell Hydro Moc vs Keen Targhee Sizing
Merrell Hydro Moc vs Jungle Moc Sizing
Merrell Hydro Moc vs Jungle Moc Leather Sizing
Merrell Hydro Moc vs Nova 2 Sizing
Merrell Hydro Moc vs MTL Long Sky 2 Sizing
Merrell Hydro Moc vs Moab 2 Sizing
Merrell Hydro Moc vs Trail Glove 6 Sizing
Merrell Hydro Moc vs Columbia Redmond Sizing
Merrell Hydro Moc Sizing for Women
All photos below use a size 7 women’s shoe.
Women’s Merrell Hydro Moc vs Crocs Classic Sizing
Women’s Merrell Hydro Moc vs Vans Sizing
Women’s Merrell Hydro Moc vs Birkenstock Arizona Sizing
Women’s Merrell Hydro Moc vs Hey Dude Wendy Sox Sizing
Women’s Merrell Hydro Moc vs Keen Newport Sizing
Women’s Merrell Hydro Moc vs Skechers D’Lites Sizing
Women’s Merrell Hydro Moc vs Under Armour Sizing
Women’s Merrell Hydro Moc vs Xero Sizing
Women’s Merrell Hydro Moc vs Keen Sizing
Women’s Merrell Hydro Moc vs Adidas Cloudfoam Sizing
Women’s Merrell Hydro Moc vs New Balance 880 Sizing
Women’s Merrell Hydro Moc vs Nike Air Max 1 Sizing
Women’s Merrell Hydro Moc vs Nike Blazer Sizing
Women’s Merrell Hydro Moc vs Air Force 1 Sizing
Women’s Merrell Hydro Moc vs Hoka Sizing
Women’s Merrell Hydro Moc vs Brooks Adrenaline Sizing
Women’s Merrell Hydro Moc vs Asics Gel Kayano Sizing
Women’s Merrell Hydro Moc vs Columbia Ventrailia Sizing
Women’s Merrell Hydro Moc vs Nike Internationalist Sizing
Women’s Merrell Hydro Moc vs New Balance 928 Sizing
Women’s Merrell Hydro Moc vs Vapor Glove Sizing
Women’s Merrell Hydro Moc vs Jungle Moc Sizing
How Wide are Merrell Hydro Mocs?
As I discussed earlier, my Merrell Hydro Mocs do not fit as wide as my Crocs. Crocs are well known for having a wide, roomy design. Even though my Merrell Hydro Mocs don’t fit as wide as Crocs, I would not describe them as being narrow.
For Merrell Hydro Moc width comparison, here are men’s Merrell Hydro Mocs compared to Crocs:
And here are women’s Merrell Hydro Mocs compared to Crocs:
In the photo below, I tried to get a better representation of exactly how much wider Crocs are than the Merrell Hydro Mocs. If you look closely, you can see that the Crocs (on the left) are a little bit wider than the Hydro Mocs (on the right):
For more Merrell Hydro Moc width comparison, here are my Merrell Hydro Mocs (in standard width) compared to Nike Air Monarch 4E Extra Wide shoes:
The main takeaway is don’t expect Merrell Hydro Moc sizing to be narrow, but they do not fit quite as wide as Crocs.
Merrell Hydro Moc Size Measurements
Height
Below is the height measurement of my size 12 Merrell Hydro Moc shoes:
Weight
My size 12 Merrell Hydro Mocs weigh 0.60 pounds per shoe. Here I am weighing my shoes:
The Merrell Hydro Mocs do feel very lightweight on my foot, but it is fair to point out that I did find Crocs Classics to weigh less. My size 12 Crocs Classic weighs 0.43 pounds per shoe:
The Merrell Hydro Moc is a lightweight shoe. If you prefer a sturdier slip-on shoe, perhaps the Merrell Jungle Moc would be a better option.
Heel Type
One feature that makes the Merrell Hydro Mocs unique from Crocs is the heel design. The Merrell Hydro Mocs have a heel “sling” that Crocs Classics do not have (Hydro Mocs on right):
This may allow the Merrell Hydro Mocs to comply with certain workplace standards that Crocs Classics do not.
Comfort
One thing I really like about the Merrell Hydro Mocs is I think they provide more cushioning under the foot than Crocs. I feel a softer compression under both the toe pad and the heel.
What Size Should You Order for Merrell Hydro Mocs?
In my experience, Merrell Hydro Moc sizing is true to size, so ordering normal sizing is my recommendation. If you normally wear a half size in Merrell footwear, Merrell suggests on their website that you size down the Hydro Mocs (source). I would agree with this. I think if you sized up, they would likely be too loose in length.