• Mobile Fidelity - Original Master Record Heavyweight Inner Sleeves (50pk) Vinyl Sleeves Mobile Fidelity Sound Lab - Arcline Store
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Mobile Fidelity Sound Lab

Vinyl Sleeves

Mobile Fidelity - Original Master Record Heavyweight Inner Sleeves (50pk)

Mobile Fidelity - Original Master Record Heavyweight Inner Sleeves (50pk)

$29.95
$29.95
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Dent-free worldwide delivery Dent-free delivery
Hassle-free returns Hassle-free returns
Audiophile-grade sound Audiophile-grade sound
No Bootlegs 100% official releases
Release Details
  • HeavyWeight edition with 120gsm thickness for extra-sturdy protection
  • Three-ply anti-static design with paper core between two HDPE layers
  • Translucent HDPE front for easy record identification
  • Helps prevent scuffs, contamination, and static build-up
  • Pack includes 50 inner sleeves

Description

If you want the “do it once, do it right” inner sleeve for your collection, these are it. Mobile Fidelity’s HeavyWeight Original Master Sleeves upgrade the already-famous MoFi design with thicker 120gsm construction, giving your LPs a more rigid, premium feel and better long-term protection. The three-ply build combines a paper layer for structure with high-density polyethylene (HDPE) on both sides to reduce static and minimize surface contact that can cause hairline marks. The translucent front also makes it easy to keep your collection organized without pulling records out. For collectors protecting expensive pressings, audiophile reissues, and daily spinners alike, this 50-pack is one of the smartest upgrades you can make.

Shipping & Returns

Protected USPS Media Mail shipping from $5.95 (4–7 business days) • Free U.S. shipping on $100+ orders

Need it faster? Choose from a variety of Standard and Express USPS or UPS shipping services at checkout.

Orders are securely packed in vinyl-specific mailers with corner protection and padding, with a 98% safe delivery success rate. Please allow 24-48 hours for processing. Same-day shipping may be available for Express orders with prior email notice if your order is urgent. We do not process or ship on weekends.

For international orders, we offer Standard delivery via Asendia (7–21 business days) or DHL Express (3–5 business days, DDU option). Import duties/VAT may not be included — please review DDP/DDU options at checkout.

If your order includes preorder or backorder items, the full order ships once all items are in stock based on the estimated date shown on the product page. To receive available items sooner, please place a separate order.

Until your order ships, you can cancel or remove an item by logging into your account and submitting a request there. For address or shipping changes, contact support@arclineusa.com — we'll reply within 24 hours.

We offer a 30-day return guarantee for items in original condition. To start a return, log into your account and submit a return request there, or email support@arclineusa.com with your order number. Refunds are issued after the item is received.

For full details, please see our Shipping, Preorder, and Returns policies.

SKU: MFSLIS120GSM | UPC: 821797777476

Worth owning together
Protective Sleeves Mobile Fidelity - Original Master Record Inner Sleeves (50pk) $29.95
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Protective Sleeves Mobile Fidelity – Archival Record Outer Sleeves (50pk) $29.95
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Mobile Fidelity - Original Master Record Heavyweight Inner Sleeves (50pk) Vinyl Sleeves Mobile Fidelity Sound Lab - Arcline Store
Mobile Fidelity - Original Master Record Heavyweight Inner Sleeves (50pk)
$29.95

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    FAQ

    Please allow a minimum of 24 hours for order processing. Domestic orders typically arrive in 4–7 days with Economy USPS Media Mail. If you need your order faster, choose Standard options (3–5 days) or Express (2–3 days).

    All sleeves are shipped brand new and sealed in their original packaging. We pack every order securely — with a 98% success rate of safe delivery.

    You can request a return within 30 days if the item is in its original condition — just log into your account and submit a return request. We cover return shipping for damaged or defective items; for unwanted or incorrect orders, return shipping is the buyer's responsibility.

    Yes — every release we sell is officially licensed, and the artists and rights holders are paid for their work. We’re strictly against bootlegs and unauthorized pressings, and we enforce an anti-scalping policy so genuine fans can buy at fair prices.

    See all FAQs