In descriptions of handmade leather goods, you may often see the phrase hand sewing or saddle stitch. Behind that phrase there is always a large amount of repetitive manual work, and the choice of needle matters more than many people realise. System S+U needles are one of the solutions I value for fine hand sewing leather, especially when working with thin thread and small stitch spacing.

To understand why this matters, imagine a classic belt about 120 cm long. Such a belt may require around 888 stitches with a pitch of 2.7 mm. Hand stitching it can take 5 to 6 hours. A women’s bracelet with a double wrist circumference may contain up to 200 stitches with a pitch of 2.25 mm. When using thin thread such as 0.35 mm and a small step of 2.7 to 2.25 mm, the result looks elegant and refined, but the work becomes slower and much more demanding for the hands.

In this kind of work, the needle should be thin enough not to overload the seam, but also strong enough not to bend, break, damage the thread, or dig painfully into the fingers. That is exactly why System S+U needles deserve attention. In my experience, they are especially suitable for hand sewing leather where accuracy, comfort, and control are all important.

System S+U Art. 953 needles are a practical option for fine leatherwork and can also help reduce finger fatigue during long sewing sessions.

Recommended sizes:
No. 1 — 60 mm length, 1.1 mm diameter, suitable for 0.6 mm thread
No. 2 — 56 mm length, 1.0 mm diameter, suitable for 0.55 mm thread
No. 3 — 54 mm length, 0.9 mm diameter, suitable for 0.5 mm thread
No. 4 — 48 mm length, 0.9 mm diameter, suitable for 0.45 mm thread
No. 6 — 42 mm length, 0.8 mm diameter, suitable for 0.4 mm thread
No. 7 — 42 mm length, 0.7 mm diameter, suitable for 0.35 mm thread

If you are also comparing other options, see my note about John James needles, which is closely related to this topic.