mlwdp
Senior Member
- Joined
- Nov 22, 2009
- Messages
- 190
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- 126
Width D. I have the Boss in 9165 width D and it fits like the MP in width E except not close on the top of feet, plenty of room. It really depends on what sole you’re getting. If you’re getting a wedge sole, I would recommend width E. Source: have owned 3 Boss models in MP and 9165 last.