The First Mark · OB-01
OB-01 Vertical Wallet
A hand-stitched leather wallet for considered daily carry.
The OB-01 is a compact vertical wallet made in small batches from full-grain, vegetable-tanned English bridle leather. Its black exterior opens to a walnut interior with an angled cutout, card slots, and a side-access hidden pocket. Hand saddle stitching reinforces every seam, while the leather develops its own character through daily use.
Product information
At a glance.
- LeatherFull-grain English bridle
- TanningVegetable tanned
- ConstructionHand saddle stitched
- ProductionMade in small batches
Materials
English bridle is a full-grain, vegetable-tanned cowhide originally developed for demanding equestrian use. Its firm structure and wax-rich finish give it a smooth hand, deep color, and the ability to hold its shape. Oak Buck selects it over softer fashion leathers when a piece calls for strength, definition, and a patina that grows richer through use. Natural grain, tone, and markings make every piece distinct.
Construction
Cut, assembled, and saddle stitched by hand. The traditional two-needle stitch creates a strong seam designed for years of daily carry.
Dimensions & capacity
Open: 16 × 11.43 cm (6.30 × 4.50 in)
Closed: 7.5 × 11.43 cm (2.95 × 4.50 in)
Capacity: 10–12 cards
Personalization
Select Add personalization above to enter an interior monogram of up to five characters (+$15). It is blind debossed in uppercase by default; matte gold or matte silver foil is available for an additional $10. Please check your characters carefully before placing the order. Changes may not be possible once work begins.
Personalized pieces are made to order. Allow approximately 2–4 weeks before shipping. Timing may vary with inventory and demand. Personalized pieces are final sale and cannot be returned or exchanged for a change of mind. If your piece arrives damaged, defective, or different from your order, contact us promptly.
Guarantee
Covered by Oak Buck’s limited lifetime craftsmanship warranty and our 30-day money-back guarantee. Normal wear, patina, and natural leather variation are not defects.
Care, shipping & returns
Every piece is shipped conditioned with Saphir Renovateur. Condition only when the leather begins to feel dry and keep it away from prolonged moisture or direct heat. Shipping options appear during checkout; eligible unused pieces may be returned within 30 days of delivery.
Designed with purpose
A vertical wallet for the essentials.
Closed, the OB-01 measures 7.5 × 11.43 cm (2.95 × 4.50 in) and carries approximately 10–12 cards. Its upright form and signature angled opening keep the profile distinct without adding unnecessary bulk. Behind the card slots, a side-access pocket makes room for what you want to keep close.
Full-grain English bridle leather gives the wallet its structure and smooth hand. Cut, assembled, and saddle stitched by hand, each small-batch piece is made to become more personal as the leather takes on a patina. The Black/Walnut pairing brings contrast to the exterior and interior without relying on decoration.
Read how the OB-01 was designed →OB-01 questions
Good to know before you carry it.
How many cards does the OB-01 vertical wallet hold?
The OB-01 holds approximately 10–12 cards. Its compact vertical shape measures 7.5 × 11.43 cm (2.95 × 4.50 in) when closed.
Does the OB-01 have a hidden pocket?
Yes. A side-access pocket sits behind the card slots near the middle of the wallet, giving you an additional place to organize small essentials.
Is the OB-01 leather wallet sewn by hand?
Yes. Each OB-01 is saddle stitched by hand with a traditional two-needle method. The seam is built for lasting strength in daily use.
How will full-grain English bridle leather age?
The leather develops a patina with handling and use. Subtle changes in tone, grain, and texture are part of the material's natural character. See our leather care guide for upkeep.
Can I personalize the OB-01 wallet?
Yes. You can add an interior monogram of up to five characters. Personalized pieces generally take 2–4 weeks before shipping and are final sale. Review the options and terms in the Personalization section above.