Liner recovery
Nylon/elastane liner 180–220 GSM shortlisted for recovery after stretch — length trimmed after squat/run rounds.
Engineering note
Stopping Phone Bounce and Liner Ride-Up on 2-in-1 Shorts
During squat and run trials the phone pocket bounced and the liner rode up — two failures buyers notice before they notice GSM.
Anonymous engineering note — brand name and logo withheld.
Direct answer
During squat and run trials the phone pocket bounced and the liner rode up — two failures buyers notice before they notice GSM. — anonymous engineering note on library block EL·MS-610. Remake samples From 1 piece (typically 7–9 working days); bulk 150 pieces per style per colour.
Problem
During squat and run trials the phone pocket bounced and the liner rode up — two failures buyers notice before they notice GSM.
Hardest moment
Support vs ride-up: a firmer liner recovered better but climbed under load; a softer liner stayed put but lost coverage. Pocket angle had to move with the liner, not against it.
Levers we locked
Pocket angle
Media pocket shifted ~15mm and mouth bartacked so the phone sat against the body line, not the shell swing.
Shell split
Side split and shell ease tuned so the outer did not pull the liner on stride.
Validation
- Movement wear trial (squat / run / phone in pocket)
- Wash check after fit lock
- Liner stretch recovery and pocket zipper durability
GateFit lock · pocket bartack · liner recovery
OutcomeRemakes to lock · liner length trimmed · pocket +15mm / bartack · 150/colour opened
MOQ150 pieces per style per colour
Evaluate this block
Vector 2-in-1 Short EL·MS-610
USD 80–180 per style, excluding courier and special setup — confirmed before you commit. Courier separate.
Full development timeline
Challenge
Balance liner recovery with outer-shell noise and pocket security under dynamic movement — without turning the short into a compression garment.
Fabric selection
MotionFlex shell 120–150 GSM with nylon/elastane liner 180–220 GSM.
Pattern development
Rise and liner length adjusted after fit rounds; pocket geometry locked to the body line.
Testing
Movement wear trial, wash check, stretch recovery on liner, zipper durability on pocket.
Revision
Sample locked after liner length trim and bartack reinforcement at pocket mouth.
Production outcome
PPS approved for private-label colour and branding runs from 150/colour.
Related
Other engineering notes
Engineering note
Performance Tee
Preventing Neck Stretch After Wash on Performance Tees
After wash and wear simulation the neckline opened and would not recover — a classic retail return driver on training tees.
Wash recovery locked · rib/binder revised · colour run path opened at 150/colour
Read engineering noteEngineering noteTravel Pant
Travel Pants: Comfort, Wrinkle Control and a Clean Silhouette
Airport and commute wear needs soft comfort and a clean line — but seated wrinkle and pocket bulk quickly destroy the silhouette buyers paid for.
Crease + silhouette locked · waistband/pocket revised · 150/colour path
Read engineering noteEngineering noteRecovery Hoodie
Recovery Hoodies: Premium Handfeel Without Excess Bulk
Buyers want a premium brushed hand — but heavy fleece turns into bulk that kills the silhouette and overheats warm-up use.
Handfeel locked without GSM overbuild · construction cleaned · 150/colour opened
Read engineering note