Both are vintage-treatment M-65 field jackets but with different construction focuses. The Rothco Vintage Lightweight M-65 prioritizes a lighter fabric weight for improved mobility and comfort in milder conditions. This Vintage M-65 Field Jacket uses standard M-65 construction weight, the classic fabric density that defined the original military-issue jacket. The standard weight version provides more wind and cold resistance, while the lightweight version prioritizes comfort and packability. Choose standard weight for cold weather performance. Choose lightweight for mild weather versatility.

The M-65 field jacket's signature feature is a hood stored inside the collar when not needed, accessed by opening the collar and pulling the hood from its stowaway compartment. The drawstring allows the hood to be cinched around the face for protection from wind and rain. When stowed, the hood is completely invisible and does not add bulk to the collar or affect the jacket's appearance. This design keeps the hood permanently available without the hassle of a detachable hood that can be misplaced.

The storm flap is a fabric panel that snaps closed over the main zipper closure providing a secondary wind and water barrier that prevents the zipper from leaking cold air and moisture during adverse conditions. The snap closure sits over the full-length zipper, creating a smooth outer surface that sheds wind and light rain more effectively than the zipper teeth alone. This double-closure system zipper plus storm flap is a practical design feature that meaningfully improves the jacket's weather resistance in wind and light precipitation.

Check the product listing for liner specifications. The M-65 system traditionally includes a button-in liner for cold weather use. The liner buttons around the interior of the shell jacket to add insulating value for winter conditions, then can be removed for use as a standalone shell jacket in mild weather. If the liner is included, it significantly extends the jacket's useful temperature range. If not included, the Rothco M-65 Field Jacket Liner is available separately and compatible with standard M-65 shell jackets.