Blue Line Patches: Placement and Care for Duty Gear

By Training Videos | UsingASPBatons | asp-usa.com | Published: 2026-11-01

Category: Tips & Care

Learn where to place blue line patches on duty gear, how to attach sew-on or hook/loop versions securely, and how to care for them so they stay crisp.

Quick answer

Place blue line patches on flat, high-visibility areas such as the upper sleeve or chest of a duty shirt, or the front panel of a duty bag, and match the attachment method to the garment: sew-on for permanent uniforms, hook/loop for removable gear. Always test placement and secure edges before wearing.

Choose the right backing for the garment

Blue Line Patches come with either a sew-on/iron-on backing or a hook/loop backing. Sew-on is best for uniforms that get washed frequently and need a permanent, flat finish. Hook/loop is better for gear you swap between bags, jackets, or vests. Iron-on can work on some fabrics, but heat can damage synthetic materials, so check the garment label first.

Placement that respects uniform rules and visibility

Many agencies have specific patch placement policies, so confirm before you sew or stick anything. For personal duty bags and non-uniform jackets, place the patch where it is visible but not in the way of straps, zippers, or pockets. Avoid curved seams and high-wear areas like elbows or knees, which can distort embroidery or cause edges to lift.

Step-by-step patch placement and care

Check your department policy: Before attaching any patch, confirm the approved location and size with your supervisor or uniform guidelines. Common mistake: assuming a patch that looks right is allowed; policies often specify exact placement. If unsure, keep the patch on a bag or jacket rather than a uniform shirt.
Test placement without committing: Pin or lightly tack the patch in place and put the garment on. Check that it sits flat, is visible from the front, and does not interfere with movement or gear. Common mistake: placing too low or on a curved seam, which causes puckering. Take a photo from the front and side to confirm it looks right before permanent attachment.
Attach according to backing type: For sew-on, use a matching thread and small stitches around the edge, or take it to a tailor for a clean finish. For hook/loop, press the patch firmly onto a compatible loop panel, aligning edges. For iron-on, use a pressing cloth and low heat, and test on an inside seam first. Common mistake: using high heat directly on synthetic fabric, which can melt or scorch. If the garment stretches or is worn often, sewing is more durable than iron-on.
Secure edges and check regularly: After attachment, tug gently at the edges. For sewn patches, add a few extra stitches at corners. For hook/loop, make sure the patch is fully seated and not peeling. Common mistake: ignoring a lifted corner, which can snag and tear the embroidery. Check patches weekly if worn daily, and re-secure loose edges immediately.
Clean without damaging embroidery: Turn the garment inside out and wash on a gentle cycle, or hand wash. Avoid bleach and high heat in the dryer. For hook/loop patches, remove them before washing if possible. Common mistake: washing with abrasive items that pull threads. Air dry the garment to prevent shrinkage and patch distortion.

Product facts

Blue Line Patches: Blue Line Patches feature the ASP Eagle struck through with the blue line and are available with sew-on/iron-on or hook/loop backing. This gives you a permanent or removable option depending on whether the patch goes on a uniform or on gear you swap out.
Blue Line Patches