Sewing - Neckpurse

front view inside view

Features:

Can be carried in front of body as neck purse (if carrying backpack), side of body as shoulder purse (no backpack), behind body by tying strap around waist (rock climbing).
For storing smartphone, wallet and other valuables, maps, guidebooks, other small items that need to be kept close at hand at all times.
Fabric only lightly coated with polyurethane and seams not sealed, thus purse not waterproof. Also, full waterproofing not desirable, since water can enter through top opening when wet items inserted during heavy rain, and full waterproofing would prevent inside from drying in sun later. During rain, maps and other papers that must be accessed while hiking kept in Aloksaks. Other items stored inside home-made drysack.
Final weight, using fabrics specified below, about 130 grams.

Materials:

.5 yards sturdy nylon fabric, such as 210D HDPE reinforced gridstop, 4 oz/sqyd (from RipstopByTheRoll.com).
Scrap of taslan nylon fabric, about 3" x 20".
10 feet of 3/4" tight-weave nylon webbing.
2 each of 3/4" tri-glides.
100% polyester thread, 80/14 universal needles.
Fray check.

Instructions:

Double stitching everywhere.
Cut two pieces of fabric 16" x 26".
Sew together on 3 sides with 1/2" seam.
Zigzag seam allowances to stop fraying.
1/4" hem on open side.
Cut strip of fabric 1" by 6". Doubly fold and top stitch, to form strip 1/4" x 6". Cut 2 x 3" strips. Stitch to inside seam using bartack, starting about 10" from open edge.
Cut 56" of 3/4" webbing. Fold and top stitch around edges of purse, starting 9" from open edge. Bartack at starting points. Trim excess so 3.5" beyond bartack on both sides, sear ends, attach tri-glides.
Neck strap tunnel protects shirt from abrasion (or protects skin when hiking shirtless). Cut taslan 2.75" wide by 36" long. Add .25" hems at ends. Fold together and stitch with .25" seam to form tunnel 1.125" wide. Zigzag seam. Double stitching and double zizgag everywhere, since stitching subject to abrasion.
Cut/sear 55" of 3/4" webbing, insert through taslan tunnel and through tri-glides, tie knots in free ends to keep in place.
Fray check all seams and bartacks.
Attach emergency whistle and flashlight to inner loops.