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Original Master Record Inner Sleeves (50pk) - MOFI MFSL

4.9 4.9 out of 5 stars 6,697 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Audio & Video Turntables by Mobile Fidelity Sound Lab

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50 pack

Purchase options and add-ons

Material Microfiber
Brand Mobile Fidelity Sound Lab
Color Grey
Style Classic
Item Weight 1.4 Pounds

About this item

  • Three-ply, anti-static, premium record sleeves
  • Used in Mobile Fidelity LP packaging for the last 35 years
  • Personally used by more music reviewers & record labels than any other
  • The finest protection for all of your valuable records
  • Keep your collection clean and dust-free

Customers usually keep this item

This product has fewer returns than average compared to similar products.

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Mobile Fidelity Sound Lab - Original Master Record Inner Sleeves (50pk) - MOFI MFSL
Mobile Fidelity Sound Lab - Original Master Record Inner Sleeves (50pk) - MOFI MFSL
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Price-20% $20.00
List:$24.99
$23.99-7% $24.89
Typical:$26.89
$14.99$30.95$14.89
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Durability
4.8
4.5
4.5
4.5
4.6
4.5
Sheerness
4.6
4.5
4.7
4.6
4.4
4.7
Value for money
4.6
4.2
4.5
4.5
4.6
4.5
Sturdiness
4.6
4.1
4.5
4.5
4.6
4.5
Easy to use
4.8
4.6
4.8
4.8
4.6
Sold By
Audio Advice
Audiophile Approved
prïsm
Invest in Vinyl
Hudson Hi-Fi
prïsm
paper size
306 x 308
12.75 x 12.75
12.75 x 12.75
210 x 297 millimeters
12.7 x 12.5
max input sheets
50
50
100
50
100
25
number of pieces
50
50
100
50
100
25
style
Classic
Classic
100 Pack
vintage
Classic
25 Pack
material
Microfiber
Polyethylene (PE)
Vinyl, Polypropylene (PP), Polyethylene (PE)
Vinyl
Vinyl
Vinyl, Polypropylene (PP), Polyethylene (PE)

What's in the box

  • record sleeves
  • Looking for specific info?

    Product Description

    MOBILE FIDELITY SOUND LAB INNER SLEEVES

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

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    Mobile Fidelity Sound Lab - Original Master Record Inner Sleeves (50pk) - MOFI MFSL


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    Customer reviews

    4.9 out of 5 stars
    4.9 out of 5
    6,697 global ratings

    Customers say

    Customers like the scratch resistance, ease of inserting, value, fit and dust resistance of the card document sleeve. For example, they mention that it protects against scratches, it slides very easily into the jackets without any bunching up and that it works well for the price given. They also appreciate the fit and say that it keeps vinyl clean from dust.

    AI-generated from the text of customer reviews

    877 customers mention828 positive49 negative

    Customers are satisfied with the quality of the card document sleeve. They mention that it is very high quality, consistent, and easy to use. The materials are high-quality, and they consider it the best inner record sleseve on the market. They also say that it holds up well and is a great value for what it is.

    "...These are an incredible upgrade. They store the records much better within their outer sleeves and help eliminate all the static...." Read more

    "MoFi Master Record Sleeves are excellent and worth the investment in protecting your LP's...." Read more

    "This is a great protective sleeve and helps prevent static electricity and dust that can attribute to pops and clicks...." Read more

    "...They feel like they will last many many years with no issue...." Read more

    224 customers mention182 positive42 negative

    Customers like the value of the archival sleeve. They say it's the cheapest insurance you could ever have, and it works well for the price. Customers also say it eliminates static and does not scratch their investment. Overall, customers are satisfied with the quality and value of this product.

    "MoFi Master Record Sleeves are excellent and worth the investment in protecting your LP's...." Read more

    "...It’s worth the wait!" Read more

    "This is the third package of these liners. They are great and a great value for what they are. Highly recommend." Read more

    "...Otherwise and excellent product at a reasonable price." Read more

    171 customers mention163 positive8 negative

    Customers like the static of the card document sleeve. They say it's truly static-free, helps with the static problem, and reduces buildup. Customers also mention that the sleeves are thin and anti-static, and keep records scratch free.

    "...the records much better within their outer sleeves and help eliminate all the static. I wish I pitch these up much earlier...." Read more

    "These inner sleeves leave behind no residue and seem to help keeping static down. Wash your records and put them in these...." Read more

    "...I like them, use them, and recommend them. There is no static electricity buildup from these sleeves, and they have a paper type interior "sandwich..." Read more

    "Anti-static, so very little dust attraction. Smooth and "cozy" archival record storage. Enjoy!" Read more

    165 customers mention124 positive41 negative

    Customers like the fit of the card document sleeve. They say it fits their records well, has a tight fit, and does not have size problems. Some say that the sleseve is great for both original jackets and LPs for covering and protecting LP's. Overall, most are satisfied with the fit and thickness of the product.

    "...Much better than generic paper sleeves. They even fit 180 gram vinyl LPs with no problems...." Read more

    "...I purchased this for protecting LPs. It has great size for both original jacket and LPs for covering and protecting LPs. So far, very satisfied!" Read more

    "...They protect the records well, fit nicely (albeit a bit snug on some of my heavier weights), don't produce any static, and slide into the sleeves..." Read more

    "...not be the right material in which to store records, but its just a tad too big (tall) so it doesn't fit easily back into to outer jacket and is so..." Read more

    84 customers mention64 positive20 negative

    Customers like the ease of inserting. They mention that the sleeves slide very easily into the jackets without any bunching up. They also say that the records easily slide in and out of the sleeves with no static. Customers also say the sleeves work great for ease of slipping in and LP covers perfectly.

    "...don't produce any static, and slide into the sleeves without issue." Read more

    "...I prefer the Invest in Vinyl sleeves that are easier to insert in the record cover but also a little less expensive." Read more

    "...It is also easier to slide the Audiophile sleeve into the record jacket if you wish, because the added thickness / rigidity means they do not want..." Read more

    "...They are light so it is a bit difficult to start inserting (corners) in the jacket." Read more

    73 customers mention67 positive6 negative

    Customers are satisfied with the dust protection provided by the card document sleeve. They mention that it works well to keep dust off their vinyl records, and helps prevent static electricity and dust that can attribute to pops. They also appreciate the no residue left behind and the fact that they are not dust magnets.

    "This is a great protective sleeve and helps prevent static electricity and dust that can attribute to pops and clicks...." Read more

    "These inner sleeves leave behind no residue and seem to help keeping static down. Wash your records and put them in these...." Read more

    "Anti-static, so very little dust attraction. Smooth and "cozy" archival record storage. Enjoy!" Read more

    "These are great! They protect from dust and static, and are great quality." Read more

    67 customers mention60 positive7 negative

    Customers like the ease of use of the card document sleeve. They mention that it's easy to handle the liners, and to slide the records in and out. They also say it'll make putting records on and taking them off much easier.

    "...They are of consistent quality, easy to use, and trustworthy. I strongly recommend them." Read more

    "...is very soft and the paper backing adds firmness that makes it easier to pull out and replace the sleeves in the jacket without any wrinkling or..." Read more

    "...Makes for easier access to the vinyl, as you don't have to pull the entire record jacket out of the out protective sleeve to play the record...." Read more

    "...Getting the sleeves on your records is easy, if you use this "one weird trick". First, take the record in your dominant hand with side 2 facing up...." Read more

    55 customers mention46 positive9 negative

    Customers like the scratch resistance of the card document sleeve. They mention that it protects against scratches, unlike paper sleeves that scratch their records. The inner sling protection does not scratch up the albums in any way. The static in addition to keeping your vinyl safe from scuffs and scratches as you take them in. The plastic won't smudge the vinyl and the anti-static polyliners will do a great job. They also say that the sleeves are smooth and will not scratch the surface of your precious records.

    "...Otherwise, they bunch up in the corner but DO protect the LP's from swirl marks..." Read more

    "...They do exactly what they claim: anti-static, non-scratching...." Read more

    "...This is an anti scratch, anti static material which is awesome because records that start catching static will sound like crap when playing...." Read more

    "...aren't as stiff as paper sleeves, but that's the point, they won't scratch your records like paper can...." Read more

    Pretty much the industry standard for quality inner sleeves.
    5 Stars
    Pretty much the industry standard for quality inner sleeves.
    A valid question is: why should I bother replacing the inner sleeves on my records? The most extreme example of "why?" that I have experienced: I recently found a sealed original pressing of Ozawa's "The Rite of Spring" on RCA, 1968. I paid a bit of a premium for it since it was still sealed, opened it, and found that the original RCA plastic lined inner sleeve had chemically reacted with the record surface, permanently damaging the record, which was otherwise pristine and factory fresh. One supposes that in 1968 that RCA thought this inner sleeve was a premium product, however time has proved it otherwise. I, along with many thousands of other people out there, have been using these MoFi sleeves for at least 10 years without any notable issues. Paper, and cardboard, factory-provided inner sleeves can scar, scuff, and scratch the surface of the vinyl as the record is being pulled out; note how often descriptions of used records being sold include the phrases "paper scuffs" and "hairlines" due to this fact. These MoFi sleeves are designed to minimize that sort of destruction, and as far as anybody can tell at this point, also designed to be archival and not react with the surface of the vinyl.All the new vinyl that comes through here gets a wet vacuuming with the Opera Consonance record cleaning machine, using several varieties of Audio Intelligent record cleaning fluids, and then the original inner sleeves are replaced with these. I am also slowly replacing the inner sleeves on thousands of other records with the Mobile Fidelity sleeves. I've gone through quite a number of packages of these inner sleeves over the last 10 years with no problems, other than the fact they can be a little frustrating in use, i.e. the softness and slickness of the materials used can require a bit more extra effort to separate and insert the records. The sleeves are about a dollar each after shipping, but if you're serious about preserving your vinyl, they are pretty much the best option out there. I have noticed some off-brand knockoffs out there in a lower price range, but since I have many years experience with this product, I think it's probably worth the extra money to stick with the brand name. If you're going to go through the trouble of trying to preserve your records, you may as well spend the extra money. I consider myself more of a record listener than a record collector, but I would still like to preserve these items in the best possible condition for the longest time.
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    Top reviews from other countries

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    Bruno Ventura
    5.0 out of 5 stars Ótimo
    Reviewed in Brazil on October 20, 2023
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    Jason
    5.0 out of 5 stars Excellent product for good price
    Reviewed in Canada on February 24, 2023
    Size: 50 packVerified Purchase
    One person found this helpful
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    Cliente de Amazon
    5.0 out of 5 stars Excelente producto.
    Reviewed in Mexico on January 1, 2023
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    Gillardeau
    5.0 out of 5 stars Da kann man nicht meckern.
    Reviewed in Germany on January 30, 2024
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    Archie
    5.0 out of 5 stars Great Quality
    Reviewed in the United Kingdom on December 31, 2023
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