I use Atlas 495 and 660 with my SI TECH dryglove rings. The Atlas 495 came with the rings. Atlas gloves are also branded as Showa. I did quite a bit of experimenting with sizing and different liners.
The sizing and fit of the 495 is different because they're designed to be used with liners. The fingers are fatter and the circumference across the palm is bigger. The middle finger length is a little shorter than the 660. See measurements below.
For reference, some pics from Seattle Marine.
The Atlas 495:
The Atlas 660:
The Atlas 620:
I haven't used the 620, but my guess is they are sized like the 660, although the pic shows somewhat fatter fingers. They reportedly have a thinner coating of pvc to make them more supple.
The 495 and 660 are both "triple-dipped" pvc for greater oil resistance, so they are also more resistant to cuts and punctures, I believe.
Seattle Marine's Atlas glove page:
Seattle Marine - Boating and Fishing Supplies - Seattle Marine
Here's some info including measurements I've just taken:
My hand measures 8" circumference (across the palm at the first knuckle) and 3 and 3/8" middle finger length (from between the middle and ring fingers to the end of the middle finger). My fingers are probably average thickness.
For warmth, I like my glove fit to be loose, so I wear the size Large 495. That will accomodate the yellow liner with plenty of room. I like the fit. I use that glove and liner for water temps from 45 to 70F.
It's roomy enough to accomodate wearing two sets of liners, such as the yellow liner with a lighter white polypropylene liner. I paid $1.12 a pair for them at a fishermen's supply house in Gloucester, MA. Similar to this:
Here are my measurements of my Atlas gloves (circumference and middle finger measured as above):
Model/Size ..... Palm Circ ....... Middle Finger Length (all measurements in inches)
495 L ............... 10 ....................... 3
495 XL ............. 10 3/4 .................. 3 1/2
660 L ................ 9 ........................ 3 1/4
660 XL .............. 9 3/16 ................. 3 5/16
660 XXL ............ 9 1/2 ................... 3 3/8
As far as comparing the fit on
my hands, the 495 L will accomodate the standard yellow liner with a fit that's moderately loose around the fingers and palm, allowing easy bending of the fingers when gripping.
With that same yellow liner, the 660 XXL is a close fit around the fingers and palm, and, as a result, doesn't allow my fingers to bend as easily, becoming a little too tight when gripping. That only creates a problem in real cold water (sub-40 temps) when gripping something for long periods of time. For temps above 55F, with the lighter white liner, they are a perfect fit.
For mid-30's or below, I actually use the 495 XL with
two sets of liners and they fit nicely, that is
, loosely, just the way I like it for the added warmth.
Dave C