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FunctionMaterialUnit Cost (Joann Fabrics)Stretch: Degrees of FreedomTesting TypeYield Strength (Normal)Yield Strength (Shear)Machine Wash DurabilityDryer DurabilityNotesRelevant Links
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Closure MethodsSnaps, size 24 (.63in diameter)$8/6 setsN/ALoad testing, given standards

Test per ASTM D7142		2000 +/- 200g (ASTM D7142)TBDYesYesDonna prefers snaps because wires can be fed through openings and are easy to removehttps://www.joann.com/heavy-duty-snap-fasteners-5-8in-6-pkg-nickel/8562514.html?gclid=Cj0KCQjwgOzdBRDlARIsAJ6_HNkkQGZuRTsm6tvrtY0NExymBZvEEtm3N40jgcMyRkKV9l_dOglw2AsaAjLPEALw_wcB
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Velcro, 2in width$9/ydN/AResearch Velcro brand website (Customer does not want this closure method)1.2lb/in width (Velcro website)14 psi
(Velcro website)		Rapid wearRapid wearDonna says no to velcro because of deterioration during machine washing
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Zippers$3 for 22in plasticN/AStandards (Customer does not want this closure method)8.97N/tooth
(ASTM D2061)		10.69N/tooth
(ASTM D2061)		YesMaterial DependentDonna says no to zippers because it closes the baby off from airflow
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Garment MaterialsCotton- Spandex Knit$17/yd2Load Testing, SurveyTBDTBDYesYes; Low Heat Suggested
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Cotton- Polyester Knit$13/yd2Load Testing, SurveyTBDTBDYesYes
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Rayon$15/yd2Load Testing, SurveyTBDTBDGentle CycleNo
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Polyester- Spandex Knit$17/yd2Load Testing, SurveyTBDTBDYesYes
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