Hello, thank you for your inquiry. If you typically wear a 42L, we recommend that you select an XL in our Hamilton Leather Jacket. This should certainly provide a proper fit given your longer arms and torso.

We do hope this information is helpful.
Warmest regards,
Brooks Brothers

Hello, thank you for your inquiry. Unfortunately, we no longer offer a size Medium through our online store. If you wish, you may contact Customer Service, internationally, at 860.741.4800 or via email at service@brooksbrothers.com and a representative will assist you in locating this size at one of our stores.

Kind regards,
Brooks Brothers

Hello sir, thank you for your interest in our Hamilton Leather Jacket. If you typically wear a large in our Regular fit sport shirts, we would recommend that you also select a size Large with this particular item.

Kind regards,
Brooks Brothers

Hello, thank you for your inquiry. Since you typically wear a size 41 in your suits, you should select a size Medium for a proper fit in our Hamilton Leather Jacket. This is part of our mainline offerings and has a fairly standard fit. A size Medium will easily fit over your bulkier layers and even a shirt, tie and sweater for added warmth.

As of now, we do not currently have this item in stock in a size Medium. Please email service@brooksbrothers or call internationally at 860.741.4800 for prompt service from one of our representatives who may assist you in locating this jacket at one of our stores.

We do hope this information is helpful.

Warmest wishes for a safe trip home.
Brooks Brothers

Hello, thank you for your inquiry. Based off your dress shirt size, we recommend that you select a size Large in our Hamilton Leather Jacket.

Kind regards,
Brooks Brothers

Hello, thank you for inquiry. For our Hamilton Leather Jacket, we would recommend that you select a size Large. Based off your dress shirt size, this will certainly provide a proper fit.

Kind regards,
Brooks Brothers

Hello sir, thank you for your inquiry. Based on the measurements you have provided, we feel it is best for you to select a size Medium in our Hamilton Leather Jacket.

We do hope this information is helpful.
Kind regards,
Brooks Brothers

Hello, thank you for your inquiry. Our Hamilton Leather Jacket, in a size Medium, has sold out through our online store. If you wish, you may certainly contact our Customer Service team to see if there are any remaining at one of our stores nationwide. Simply email service@brooksbrothers.com or phone 860.274.1815 and a representative will happily assist you.

Kind regards,
Brooks Brothers

Hello sir, thank you for your inquiry. Based on the measurements you have provided, we recommend that you select a size Medium in our Hamilton Leather Jacket. Unfortunately, we no longer offer this size through our online store. However, if you wish, you may contact Customer Service at 800.274.1815 or via email at service@brooksbrothers.com to see if an agent may assist you with locating this size at a store local to you.

We wish you luck with your search.

Kind regards,
Brooks Brothers

Hello, thank you for your inquiry. Based on the measurements you have provided, we recommend that you select a size Small. This should provide the trimmer fit that you are seeking.

Kind regards,
Brooks Brothers