Kangol Wool 504 7726506

http://www.zappos.com/7726506
Product Description:
# The Kangol Wool 504 is as much of an innovation now as it was when the 504 style first debuted...in 1954.
# 100% wool.
# Embroidered Kangaroo logo.
# Seamless construction.
# Padded brim.
# Elasticized sweatband.
# 23 1/2" circumference.
# Imported.
# Sizing for Kangol hats:
(unisex sizing)
SM: 6 7/8 or up to 21.5" circumference
MD: 7 1/8 or up to 22.5" circumference
LG: 7 3/8 or up to 23" circumference
XL: 7 5/8 or up to 24" circumference
XXL: 7 7/8 or up to 24 7/8" circumference
One-Size-Fits-Most and Adjustable hats typically fit up to XL or 7 5/8, unless otherwise noted.

Category:

Howto & Style

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[seriousbang]

Its how close to the head it fits and the shape, the 507 is half baseball half 504

[Mitsimad]

What is the difference between the 504 and the 507? It really isn't that clear, is it just the length of the rear?