DIY sac a main en cuir ROMA

Do you dream of creating a chic, practical, and minimalist leather bag? The ROMA model is perfect for you! This small bag with its elegant lines can be worn as a shoulder bag or carried by hand, depending on your preference. Thanks to this detailed tutorial, you'll learn how to make this mini leather bag yourself, using hand or machine sewing.

This tutorial is for those already proficient in leather sewing, whether by hand or machine. You'll find all the steps to create a structured bag with meticulous finishing, worthy of a high-end leather accessory.

Dimensions:

  • Height: 18 cm
  • Width: 6.5 cm
  • Length: 21 cm

©Deco Cuir - Deco Cuir Creation - Private use only. Any reproduction or commercial use of the pattern, even partial, is strictly prohibited without the commercial license (available for purchase on our website).

For this tutorial, we offer you two options:

  • With machine sewing (we recommend a good machine with double or even triple feed) .


  • With hand stitching, simplified (hole stitching) or saddle stitching .

    Supplies
    The products needed to complete this tutorial
    KIT DIY sac en cuir velours jaune - Sac Romasac Roma kit Deco Cuir
    Sale price52,00 €
    • Title : Default Title
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    Morceau de renfort Salpa synderme - 30x40cm - Deco CuirCoupon de doublure polyamide conyl - Ultra fin : 0,1mm - NOIR - Deco Cuir
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    • THICKNESS: 0.4mm 0.6mm 0.8mm 1mm 1.5mm 2mm
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    • SURFACE: from 0.20 to 0.29 m² from 0.30 to 0.39 m² from 0.40 to 0.49 m² from 0.70 to 0.79 m² from 0.80 to 0.89 m² from 0.90 to 0.99 m² from 1 to 1.09 m² de 0,50 à 0,59 m²
    Renfort intérieur sugherite pour poignée ou anse de sac - Longueur 1mRenfort intérieur sugherite pour poignée ou anse de sac - Longueur 1m
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    SA113-Sangle-en-Nylon-BEIGE-1-.jpgsatinlys-fil.jpg
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    1,93 € / m
    • WIDTH: 20mm 25mm 30mm 40mm
    • LENGTH: 10 meter reel 1 meter
    Gamme suivie
    Fermeture à glissière MÉTAL 4mm - SUPRA - Laiton - Deco CuirFermeture à glissière MÉTAL 4mm - SUPRA - Laiton - Deco Cuir
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    • COLOR: Beige Chocolate Black
    • LENGTH: 10cm 15cm 20cm 25cm
    Aimant rond - 4x2mmx600.jpgaimant-rond-9-5x1-5-mm.jpg
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    Mousqueton tournant - Attache ovale - Doré clair - Pour lanière de 15 mmMousquetons tournants pour maroquinerie - Attache ovale - Doré ou Nickelé. Plusieurs tailles au choix
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    • FINISHING: Light gold Nickel plated
    • WIDTH: 15mm 20mm 25mm
    Italie 🟢⚪🔴 Laiton
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    From
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    0,18 € / item
    • FINISHING: Gun barrel luxury gold Brass Aged brass Nickel plated old copper
    • CONDITIONING: Per 20 Per 100
    Italie 🟢⚪🔴
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    • WIDTH: 10mm 16mm 20mm 25mm 30mm 35mm 40mm 45mm
    Anneau demi-rond en acier - LAITON - 8mmAnneau demi-rond en acier - LAITON
    From
    Sale price0,07 €
    • WIDTH: 8mm 10mm 12mm 14mm 16mm 18mm 20mm 25mm

    THE NECESSARY EQUIPMENT

    • 1 piece of suede split leather approximately 1.2mm to 1.4mm thick OR 1 piece of soft leather (SUAVE) - Surface area approximately 0.85 m²
    • 1 piece of Salpa synderm reinforcement - 30 x 40cm - 0.6 mm thick
    • 1 VELVET split leather pigskin hide - Surface area approximately 0.55 m²
    • 13 cm internal reinforcement for handle - 10 mm wide
    • 1.20 m of nylon webbing - 20 mm wide
    • 1 METAL zipper, 4mm wide - SUPRA - 15cm long
    • 2 round neodymium magnets - 23 x 3 mm
    • 2 swivel carabiners - Oval attachment - 15 mm wide
    • 2 medium double-cap brass rivets (T3)
    • 2 rectangular loops - 20 mm wide
    • 2 semi-circular steel rings - 16 mm wide

    • Polyester or cotton-polyester yarn
    • Double-sided adhesive tape
    • Tear-resistant tape
    • Leather glue

    GET THE PATTERN

    Three options for purchasing the pattern:

    • in digital version (PDF to be printed at actual size and assembled).
    • in digital format with a permanent commercial license.
    • in paper version (poster B1 which you will receive at home).

    Available for sale on our website (reference KA228)!

    patron sac roma Deco Cuirpatron sac à main ROMA Deco Cuir
    From
    Sale price3,00 €
    • VERSION: Paper PDF PDF with Commercial License
    patron sac roma Deco Cuirpatron sac roma Deco Cuir
    Sale price140,00 €
    • DATE: Monday, April 27, 2026 Monday, November 9, 2026


    FULL VIDEO TUTORIAL

    1. Cut out the pattern pieces

    Cut out the paper pattern, then transfer the different pieces onto the leather, the lining (pigskin) , and the Salpa reinforcement. Before cutting, carefully check the placement of the pieces on the leather.

    Cut out the pattern pieces

    Using a cutter or a pair of scissors, cut out the leather, the lining and the Salpa following the lines.

    Note 1 : For piece P1, follow the black lines to cut the piece from the leather. Then follow the blue lines to cut the lining piece. On some sides, a 3 mm margin has been removed so that the lining does not extend beyond the edges of the bag.

    Note 2 : For piece P2, proceed in the same way as for P1. First, cut a rectangle from the lining along the blue line. Then, cut the leather along the black lines (do not cut the pointed end yet - dotted lines) .

    Cut out the pattern pieces
    Cut out the pattern pieces

    Note 3 : For both P9 pieces, fold the pieces in half and cut the corners at the fold to easily create the notches.

    Cut out the pattern pieces
    Cut out the pattern pieces

    2. Prepare the bag strap

    In this version, the strap is made using nylon webbing. Depending on the desired style, it's also possible to choose a cotton strap, a bag chain, a leather strap, or none at all. An adjustable shoulder strap with a sliding buckle is also perfectly feasible.

    Cut the nylon strap to the desired length and burn the ends.

    Prepare the bag strap

    Apply tear-resistant tape to the back of both pieces P9.

    Prepare the bag strap

    Place the two carabiners inside the P9 parts.

    Prepare the bag strap

    Apply contact adhesive to the back of the P9 parts, as well as to the ends of the strap (over approximately 4 cm) .

    Prepare the bag strap
    Prepare the bag strap

    Fold the P9 pieces over the ends of the strap, then let it dry.

    Prepare the bag strap

    Sew the P9 pieces onto the nylon strap.

    Prepare the bag strap
    Prepare the bag strap

    3. Prepare the screeds

    Stick tear-resistant tape on the back of the P8 pieces.

    Prepare the screeds

    Apply contact adhesive to the back of the P8 parts.

    Prepare the screeds

    Insert the rectangular loops inside the P8 pieces, then fold in half and glue. The pieces will be sewn in the next step.

    Prepare the screeds

    4. Prepare the flap

    Trace the location of part P7 onto the location of part P2, using an awl or a silver pencil.

    Prepare the flap

    Apply contact adhesive to the front of part P2 (at the location intended for P7) as well as to the back (flesh side) of part P7.

    Prepare the flap
    Prepare the flap

    Assemble the two pieces, then press using a steel roller.

    Prepare the flap
    Prepare the flap

    Trace and cut the tip into an ogive shape.

    Prepare the flap
    Prepare the flap

    Sew P7 to P2. Only sew the two long sides of piece P7 (do not sew the pointed end or the top width) . Make two parallel seams. The backstitches should only be visible at the top of the piece. At the pointed end, we recommend bringing the threads to the wrong side of the leather and tying a knot. Then secure the stitching with ripstop tape (see step 6) .

    Prepare the flap
    Prepare the flap

    Using double-sided tape or glue, stick the P8 pieces onto the designated locations on the P2 piece.

    Prepare the flap

    Sew the two lengths of pieces P8 onto P2 (green lines on the pattern) .

    Prepare the flap

    Glue the Salpa P4 reinforcement piece to the wrong side (flesh side) of the P2 leather piece, in the location indicated on the pattern. There is a margin of approximately 0.6 cm all around and 1.5 cm on the upper part (the area where the flap will be sewn).

    Prepare the flap
    Prepare the flap

    flap leather handbag

    Glue the magnet onto P2 at the location indicated on the template (approximately 2 cm from the pointed end) . Reinforce the attachment with a cross of tear-resistant tape to ensure better support and reduce the thickness of the magnet.

    flap leather handbag
    flap leather handbag

    Apply contact adhesive to the back of the P2 lining and to the back of the P2 piece (leather and Salpa) . Assemble the two, then press with a steel roller. Carefully shape the outline of the magnet using a bone folder.

    flap leather handbag
    flap leather handbag
    flap leather handbag
    flap leather handbag

    Sew all around piece P2, 3 mm from the edge, except along the top line, which will be sewn later onto the bag body (P1). Check that the presser foot can pass over the magnet; if not, use a zipper foot.

    machine sewing

    Using a rotary cutter, cut the excess lining edge to edge with piece P2.

    machine sewing
    machine sewing

    5. Work the handle

    Cut 13 cm of Sugherite, 10 mm wide.

    Working the handle

    Stick tear-resistant tape to the back of the P6 pieces.

    Working the handle

    Apply contact adhesive to the back of one of the P6 pieces and to the flat side of the Sugherite. Center and glue the Sugherite onto the P6 piece (see location on the pattern) .

    Working the handle
    Working the handle
    Working the handle

    Next, apply contact adhesive to the curved side of the Sugherite and to the reverse side of the other P6 piece.

    Working the handle
    Working the handle

    Assemble the P6 pieces edge to edge, press and form the handle.

    Working the handle
    Working the handle

    Topstitch the whole thing as close as possible to the Sugherite.

    Working the handle

    Trim the handle widthwise to 3 mm from each seam. The final width of the handle is approximately 2 cm.

    Working the handle
    Working the handle

    Drill Ø 3 mm holes, 1 cm and 4 cm from each end (see pattern) .

    Working the handle

    Position the handle at the level of the cleats and pass the ends through the rectangular loops. Then secure it with 2 double-capped T3 rivets. Set the rivets with the appropriate setting tool or a mallet (protect them with a scrap of leather if you opt for the mallet) .

    Working the handle
    Working the handle

    6. Work the decorative strip

    Stick double-sided tape along the entire length of piece P10, on the back of the leather (or apply glue) .

    Work the decorative strip

    Fold each end of the strap over by 3 cm and insert a half-round ring into each fold. Glue using double-sided tape.

    Work the decorative strip

    Mark the location of piece P10 on piece P1. Glue the back of piece P10 to this location, on the front of piece P1.

    Work the decorative strip
    Work the decorative strip
    Work the decorative strip

    Sew all the way around the strap in one go, 3 mm from the edge, and start sewing in the middle without backstitching (for a neat finish) . Bring the threads to the wrong side and tie a knot. Secure the threads with ripstop tape.

    Work the decorative strip
    Work the decorative strip
    Work the decorative strip

    7. Work on the body of the bag

    Trace the location of piece P3 on the wrong side of piece P1 (see position on the pattern) .

    Work the body of the bag

    Apply contact adhesive to the reverse side of P1 as well as to the Salpa piece P3.

    Work the body of the bag
    Work the body of the bag

    Glue the Salpa to the marked spot on piece P1 and flatten the glued area.

    Work the body of the bag
    Work the body of the bag

    Glue the magnet in the designated spot on part P1 (centered and approximately 8 cm from the edge) . Reinforce the attachment with a cross made of tear-resistant tape.

    Glue the magnet to the correct side/pole so that it can magnetize properly to that of the flap (test the magnetism as if it were the final assembly: reverse side of flap against the front side of body) .

    Work the body of the bag

    Apply contact adhesive to the reverse side of part P1 (leather + Salpa) as well as to the reverse side of lining P1.

    Work the body of the bag
    Work the body of the bag

    Place the two pieces together, wrong sides facing, carefully aligning the edges. If possible, have someone help you with this step. Using a rotary cutter, trim the lining if necessary.

    Work the body of the bag
    Work the body of the bag

    8. Working the pocket

    Using double-sided tape, position the zipper in the location indicated on part P5.

    Working the pocket
    Working the pocket

    Sew all around the zipper using a zipper foot.

    Working the pocket

    Trim the ends of the zipper if they are sticking out, then lightly burn the ends to prevent fraying.

    Working the pocket

    Apply double-sided tape or glue to the top and both long sides of the pocket, on the underside of the leather.

    Working the pocket

    Fold the pocket in half wrong sides together, then glue edge to edge.

    Working the pocket

    Sew the two widths of pocket P5.

    Working the pocket
    Working the pocket

    9. Assemble the body of the bag

    Topstitch 3 mm from the edge on all four ends of piece P1: both widths and both lengths.

    Assemble the body of the bag
    Assemble the body of the bag

    Using double-sided tape or glue, stick the underside of flap P2 to the designated spot on the front of piece P1.

    Assemble the body of the bag
    Assemble the body of the bag

    Make a first stitch 3 mm from the edge, then a second one 1 cm from the edge to reinforce the assembly.

    Assemble the body of the bag
    Assemble the body of the bag

    10. Sew the pocket

    Using double-sided tape or glue, attach the P5 pocket to the upper part of the back of the bag body (at the level of the flap on the reverse side of the leather) .

    Sew the pocket

    Position edge to edge, then stitch 3 mm from the edge.

    Sew the pocket

    11. Sew the body of the bag

    Apply contact adhesive to the 6 sides, approximately 3 mm wide.

    Sew the body of the bag

    Assemble the sides edge to edge and press the glue firmly.

    Sew the body of the bag
    Sew the body of the bag

    Finally, sew the four sides of the bag 3 mm from the edge.

    Sew the body of the bag
    Sew the body of the bag

    🎉 The bag is finished

    Congratulations, the "ROMA" bag is ready to wear. Elegant, modern, and handmade, it can be customized in a wide range of leathers, colors, and finishes to suit your preferences. An ideal project for developing your leatherworking skills and creating a unique piece.

    Roma leather bag
    Roma leather bag
    Roma leather bag
    Roma leather bag
    Roma leather bag
    Roma leather bag
    Roma leather bag
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