Crochet Phone Pouch with an Adjustable Strap
A useful phone pouch should fit the phone in its everyday case, protect it from abrasive stitches and stay stable on an adjustable strap. This guide starts with the device dimensions and builds in ease, lining and reinforced attachment points.

Measure the cased phone and test a paper model

Add modest ease for the lining and easy removal, then fold a paper template around the phone. Check that buttons are not pressed and the camera area does not catch on the opening. If the pouch will hold a card, place it in the paper model now rather than enlarging the crochet later.
Choose dense fabric and a nonabrasive lining

Use a smooth, firm cotton or cotton blend and crochet a washed gauge swatch. Avoid open lace, fuzzy fibers and raised interior texture. Test the lining fabric against the phone case for color transfer and friction. Felt is simple but may add bulk; lightweight woven cotton gives a slimmer finish.
Join the shell around the tested dimensions

Block panels to matching dimensions and mark both sides at equal intervals. Join without stretching either edge, leaving the top wide enough for the thickest part of the phone. Insert the empty case during fitting, but remove the actual device before pinning, stitching or steaming.
Make the strap adjustable and load-bearing

Measure strap length over the clothing normally worn. Reinforce crochet with woven tape, route it correctly through a metal slider and attach clips to secure rings. Sew each ring tab through several rows and load-test with an object similar in weight to the phone over a padded surface.
Line the pouch and add a deliberate closure

Sew the lining separately and anchor it below the top edge so it cannot bunch around the device. Back magnetic hardware with fabric; never attach it to unsupported crochet alone. Keep keys in another compartment because metal edges can scratch a phone even inside a lined pouch.
Choose a larger or smaller companion project
For more capacity, use the same reinforcement principles in the beginner crossbody bag. Add a separate zipper pouch for keys, or make a lightweight removable tab from these crochet keychain ideas.
