An in-seam side pocket is a pretty simple, basic and close-to invisible pocket, and is a modification I make to a heckuvva lot of my own sewing projects. It can be added to most garments that are loose enough to allow you to comfortably have your hands shoved inside ie. not anything tight and close-fitting like a pencil skirt.
If you have a good-size-for-you pocket piece already, use this, otherwise just lay your hand down on the fabric and draw around it. Give yourself a 1cm seam allowance, and allow a plenty wide opening straight edge at least the width of the very widest part of your hand... otherwise you may have trouble getting your hands into your pockets! Yup, I learnt that one the hard way once....
Cut 4 pocket pieces with the straight opening edge on the grain. If you don't have enough fabric for 4 pieces, you can just cut 2 mirror image pocket pieces from the fashion fabric, and then cut the other two pocket facings from another, tonally unobtrusive fabric OR if your fabric is bulky, you can optionally cut the pocket facing pieces from a lightweight, thinner fabric to reduce the fabric bulk in your garment.
Decide where on your garment you want the pockets to sit. Pin the pocket pieces (fashion fabric) to the back piece, and the corresponding pocket facings to the front piece and stitch together in a narrow 1cm (3/8") seam allowance.
Finish the edge with overlocking or HongKong seaming, if desired, and press the pocket and pocket facing pieces out.
Pin front and back right sides together, aligning the pocket seams exactly.
Now sew the side seams of the garment in a regular 1.5cm (5/8") seam allowance, to a point just a couple of stitches below the the junction of the side seam and where the pocket bag seam will start. Back sew those few stitches to the start of the pocket bag seam, turn and continue sewing around the pocket bag. Do the same back sew for a couple of stitches up in to the pocket opening at the lower edge of the pocket bag seam, and then continue sewing the remainder of the side seam. The seam junctions, with the narrower pocket SA within the side SA, will look like so:
Finish the seam allowances with either overlocking or HongKong seaming, if desired.
Press the pocket bag and all seam allowances towards the garment front. To keep the pocket bag permanently sitting frontwards, stitch all the seam allowances to the garment front, in a short row of stitches at the upper and lower pocket opening of the pocket. Stitch from the right side of the garment, and just go forward and reverse a few times.
E finito!
Optional; I also stitched the lower edges of my pockets to the lower hem allowance of this top to give them an extra tethering point but you wouldn't ordinarily do any more stitching. I just lucked out with the size and space there!
If you have a good-size-for-you pocket piece already, use this, otherwise just lay your hand down on the fabric and draw around it. Give yourself a 1cm seam allowance, and allow a plenty wide opening straight edge at least the width of the very widest part of your hand... otherwise you may have trouble getting your hands into your pockets! Yup, I learnt that one the hard way once....
Cut 4 pocket pieces with the straight opening edge on the grain. If you don't have enough fabric for 4 pieces, you can just cut 2 mirror image pocket pieces from the fashion fabric, and then cut the other two pocket facings from another, tonally unobtrusive fabric OR if your fabric is bulky, you can optionally cut the pocket facing pieces from a lightweight, thinner fabric to reduce the fabric bulk in your garment.
Decide where on your garment you want the pockets to sit. Pin the pocket pieces (fashion fabric) to the back piece, and the corresponding pocket facings to the front piece and stitch together in a narrow 1cm (3/8") seam allowance.
Finish the edge with overlocking or HongKong seaming, if desired, and press the pocket and pocket facing pieces out.
Pin front and back right sides together, aligning the pocket seams exactly.
Now sew the side seams of the garment in a regular 1.5cm (5/8") seam allowance, to a point just a couple of stitches below the the junction of the side seam and where the pocket bag seam will start. Back sew those few stitches to the start of the pocket bag seam, turn and continue sewing around the pocket bag. Do the same back sew for a couple of stitches up in to the pocket opening at the lower edge of the pocket bag seam, and then continue sewing the remainder of the side seam. The seam junctions, with the narrower pocket SA within the side SA, will look like so:
Finish the seam allowances with either overlocking or HongKong seaming, if desired.
Press the pocket bag and all seam allowances towards the garment front. To keep the pocket bag permanently sitting frontwards, stitch all the seam allowances to the garment front, in a short row of stitches at the upper and lower pocket opening of the pocket. Stitch from the right side of the garment, and just go forward and reverse a few times.
E finito!
Optional; I also stitched the lower edges of my pockets to the lower hem allowance of this top to give them an extra tethering point but you wouldn't ordinarily do any more stitching. I just lucked out with the size and space there!