Slim Wallet Liner and Waxed Poly Cord: Wallet Material Guide
By Tandy Leather — Tandy Leather, Inc. | Published: 2026-11-05
Category: Kaufberatung
Choose a slim wallet liner and braided waxed poly cord with confidence. Compare calfskin liners and polyester cord by size, color, and project needs.
Quick answer
For a clean, pre-cut wallet interior, choose the Slim Wallet Liner in black calfskin. For stitching that holds up to daily wear, pair it with Maine Thread Company Braided Waxed Poly Cord in a size that matches your stitch holes.
Why lining material changes the wallet build
A liner is more than a pretty interior. It adds structure, hides the back of your stitching, and determines how card pockets feel when you slide cards in and out. The Slim Wallet Liner is cut from calfskin and comes with a pattern for cutting the correct size back, so you are not guessing dimensions. Because the liner is not punched, you control hole spacing and placement to match your outer leather and thread size.
Cord size, color, and stitch hole match
Braided waxed poly cord comes in 0.5 mm, 0.8 mm, and 1 mm widths. A 0.5 mm cord suits fine stitching and smaller wallet pockets, while 1 mm cord fills larger holes and creates a bolder look. The wax helps the cord grip in the hole and reduces fraying, but it can leave a residue on light-colored leather. Choose a color that either blends with your leather or contrasts deliberately; the cord is available in multiple colors and sizes.
When pre-cut liners save time and when they do not
Pre-cut liners are a time-saver for standard slim wallet patterns, but they limit design changes. The Slim Wallet Liner is 9.5 in. x 3.75 in. open and 4.75 in. x 3.75 in. folded, with 8 card pockets and 2 currency pockets. If your wallet design falls outside those dimensions, you will need to trim the liner or choose a different lining material. Also note that the liner is black only, so it may not suit projects where a contrasting interior is part of the design.
Decision rules for choosing liner and cord
- Match liner to wallet style: Use the Slim Wallet Liner when your wallet pattern fits its folded 4.75 in. x 3.75 in. footprint and needs 8 card pockets plus 2 currency pockets. For other layouts, plan to trim the liner or select a different lining material. Check your pattern dimensions against the liner before cutting leather.
- Choose cord width by stitch hole size: Pick 0.5 mm cord for fine stitching and small holes, 0.8 mm for general wallet stitching, and 1 mm when you want a heavier, more visible stitch that fills larger holes. Test a short length of cord in your actual stitch holes before stitching the whole wallet.
- Decide on color contrast: Select a cord color that either blends with your liner and outer leather for a subtle look or contrasts for a decorative stitch. Keep in mind that waxed cord may leave a slight residue on very light leather. If using light leather, stitch a scrap first to check for wax transfer.
- Account for unpunched liners: The Slim Wallet Liner arrives unpunched, so you must punch your own stitch holes. Use the included pattern to cut the liner to size, then mark and punch holes that align with your outer leather. Punch holes in the liner and outer leather together to keep stitching aligned.
Product facts
- Maine Thread Company Braided Waxed Poly Cord - FINAL SALE: Braided from 100% polyester high-tenacity yarn with wax, available in 0.5 mm, 0.8 mm, and 1 mm widths and multiple colors. You can match cord thickness to your stitch holes and choose a color that fits your wallet design.
Maine Thread Company Braided Waxed Poly Cord - FINAL SALE - Slim Wallet Liner: Cut from black calfskin, with 8 card pockets and 2 currency pockets; open dimensions 9.5 in. x 3.75 in. and folded 4.75 in. x 3.75 in.; unpunched and includes a cutting pattern. It gives you a ready-made interior with card and cash storage, while leaving hole punching and final sizing under your control.
Slim Wallet Liner
Is this combination right for your project?
Best for
- Makers building a standard slim wallet who want a pre-cut calfskin interior with card and currency pockets
- Leatherworkers who prefer to control stitch hole spacing and want a strong, waxed polyester stitching cord
Not for
- Projects that require a lining color other than black or a pre-punched liner
- Wallets with dimensions outside the Slim Wallet Liner's folded size, unless you are comfortable trimming and adjusting the liner
