KMKOII 12-Inch Outer Vinyl Record Sleeves, 50 Pack, 3 Mil

KMKOII 12-inch outer vinyl record sleeves are a 50-pack of clear polypropylene covers listed as 3 mil thick. Their stated dimensions suit single and double LPs, with most triple-gatefold covers also claimed to fit.

At a glance

Clear outer covers let album artwork remain visible while sleeves are stored or displayed.
The listing describes the polypropylene as acid-free and the sleeve as 3 mil thick.
Manufacturer details say they fit single and double LPs. Most triple gatefolds are also claimed to fit.

Price

£10.50Save 17%

Reference price: ~~£12.58~~

Price checked: 12 Nov 2026

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Often bought together

SPINCARE 100x 12 Inch Crystal Standard Outer Vinyl Record Sleeves | Crystal Clear Covers for Single Double Albums & LPs | Aci

£20.95

SPINCARE 50x 12 Inch Crystal Gatefold Outer Vinyl Record Sleeves | Crystal Clear Covers Fit Single & Double Gatefold Albums |

£24.95

Pros and cons

Pros

50 sleeves provide covers for a larger group of 12-inch records.
Transparent polypropylene keeps cover artwork visible.
The listing specifies a 3 mil thickness and an acid-free material claim.

Technical specifications

10 specifications

Identity
Brand	KMKOII
Manufacturer reference	KPPO12-50

Dimensions and installation
Dimensions listed	33 x 33 x 1 cm; 750 g
Sleeve size	12.75” x 12.75”
Sleeve size (metric)	12.75 inches x 12.75 inches (32.5 cm x 32.5 cm)

Material and protection
Material	Polypropylene
Thickness	3 mil thick(3Mil=76 μm)
Acid-free claim	100% ACID FREE

Compatibility
Claimed fit	Single & Double and most Tripe Gatefold Record/LPs
LP capacity stated in product details	Suitable for single and double LP (1-2 LPs)

What to know before buying

Listing details to confirm

The listing gives the sleeve size as 12.75” x 12.75” and also as 12.75 inches x 12.75 inches (32.5 cm x 32.5 cm). Its product dimensions are separately listed as 33 x 33 x 1 cm; 750 g. Fit for most triple gatefolds is claimed, while another description specifies single and double LPs. Confirm dimensions and gatefold compatibility for your covers if fit is critical. These are manufacturer-provided claims, not independently measured specifications.

Who is it for?

A good fit for

Collectors who want clear outer covers for 12-inch single and double LP jackets.
Buyers looking for a 50-pack of polypropylene sleeves for visible storage or display.

Less suited to

Collectors needing confirmed fit for oversized or unusually thick gatefold jackets.
Buyers seeking inner record sleeves rather than outer album-cover protectors.

KMKOII 12-Inch Outer Vinyl Record Sleeves, 50 Pack, 3 Mil · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 274 ratings

5 stars75%75%
4 stars17%17%
3 stars4%4%
2 stars2%2%
1 star2%2%

Customer feedback highlights perceived quality, clarity and durability, with the summary also mentioning a report of no tearing during use. Customers also describe the sleeves as good value. These impressions are relevant for buyers wanting clear covers for regular storage, but they do not independently verify the stated thickness, material claims or fit.

Positive themes

Customers describe the sleeves as clear and durable.
Customer feedback characterises the perceived quality and value positively.

Frequently asked questions

How many sleeves are included?

The product title describes a pack of 50 outer sleeves.

What records are these sleeves intended for?

The listing says they fit 12-inch records, including single and double LPs. Most triple gatefolds are also claimed to fit, but that fit is not confirmed for every jacket.

What are the sleeves made from?

The listing identifies polypropylene and describes the sleeves as clear, 3 mil thick and acid-free.