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G4Z/G4 Pro Wader Size Chart 
Men's Sizes
Wader Model
Largest Girth
(chest, waist
or hips)
Inseam (crotch to floor)
Stockingfoot
S
G4Z, G4P
35"-36"
31"-32"
7-8
M
G4Z, G4P
39"-40"
33"-34"
9-11
MS
G4Z, G4P
39"-40"
29"-30"
9-11
MK
G4Z, G4P
41"-42"
33"-34"
9-11
ML
G4Z, G4P
39"-40"
36"-36"
9-11
L (9-12)
G4Z, G4P
43"-44"
33"-34"
9-11
L (12-13)
G4P
43"-44"
33"-34"
12-13
LS
G4Z, G4P
43"-44"
31"-32"
9-11
LK
G4Z, G4P
45"-46"
33"-34"
9-11
LL (9-11)
G4Z, G4P
43"-44"
35"-36"
9-11
LL (12-13)
G4P
43"-44"
35"-36"
12-13
XL
G4Z, G4P
47"-48"
35"-36"
12-13
XLS
G4Z, G4P
47"-48"
31"-32"
9-11
XLL
G4P
47"-48"
37"-38"
12-13
XXL
G4Z, G4P
51"-52"
35"-36"
12-13
XXLS*
G4Z, G4P
51"-52"
33"-34"
12-13
XXLK*
G4Z, G4P
53"-54"
35"-36"
12-13
3XL*
G4Z, G4P
55"-56"
35"-36"
12-13
3XLS*
G4Z, G4P
55"-56"
33"-34"
12-13
4XL*
G4Z, G4P
59"-60"
35"-36"
12-13
G4Z = G4Z Wader; G4P = G4 Pro Wader
* Only available through Simms' Custom Shop Program for an additional charge.