These simple, classy fold-up sheaths from Dovo have enough space to get any 6/8" or smaller razor I've met comfortably inside.

A push-button closure (embossed with Dovo's logo) snaps things down.

Until the really cool one's stock is gone, this sheath comes in black, brown with white thread, and burgundy.  The brown one has the lustful contrasting thread.

Though I hardly believe it'd even scratch a candle (Dovo chose a sensible button), for the record:  the flat portion of the rear of the 'female' button does extend through to the inner surface of the sheath.

The Dovo 271010 is a fitted and padded case for seven straight razors, finished in rich cowhide.

It is a snug fit, but I've got some pretty big blades in the display images and it did well; I do doubt that it would take kindly to 7 monster Sheffield 19th century choppers, though.

The case measures 8x4.5x1" (203x114x25mm) and weighs ~4.8 ounces (135g).

Only produced in black.

I highly recommend this unassuming-looking sleeve to protect any razor from rust.  It has about as much panache as a '89 Camry, but just like that fine tool the damn thing just works.

Like malaria pills, all you've got to do is actually use 'em & you'll have nothing to worry about anymore; they get less oily over time, but that does not affect their capacity for wicking away moisture.  This is an effective anti-rust solution for a lifetime; it is not merely a barrier that prohibits moisture from entering within, but instead a tool which continually draws moisture from the inside to the outside.  Always leave it where it can expunge the moisture to a larger environment, and if those larger environs are as crazy humid (~85% at all times) as a sailboat or rainforest's innards, I'd recommend the extreme step of putting the razors/sleeves in an airtight container with some fresh silica gel packets enclosed within (Ewa Marine's 'CD5' are a very thirsty and reusable desiccant option).

Made by hand in the USA for the firearms industry, the sleeve's based on USA cotton treated with oil and silicone.  There's no need to oil carbon steel kept within; I've used it for a high carbon oldie that I never oil, and I live in a near-constant 70-75% relative humidity environment.  Not a drop of rust anywhere in >3 years.  That's very impressive.  In fact, the makers say to not oil 'em, as this can seal moisture under a film of oil.

This is an excellent, practical travel solution, too.

WARNING:  When you get it, the inner surfaces of this little sock sleeve are much more slippery than, say, a dry terry cloth towel.  It is not intended as a protection tomb from impact, and offers no protection from the laws of physics; this is only a tool to eliminate the risk of rust.  If you forget which end of the sleeve is the open end and expose that open end marginally more towards the center of our earth as opposed to away from it, it is very likely that the razor will fall out of it, possibly damaging you, the razor, or both.  Be careful carrying it around.  I myself have already made this stupid mistake once, but still wouldn't trade these things for the world.  One less thing to worry about.

Note:  $6 USA/Canada & $8 Int'l price is only required if making an order for 1 sleeve, all by its lonesome.  Combine purchase of a sleeve with anything else and use the $4.50 button.  Thanks!