The Improved Rainsuit (IRS) is considered a GEN-II ECWCS item. It has been superseded by other products such as the GEN-III Level 5 and 6 jacket, but is still in widespread use. The IRS is not insulated, so it does not provide any thermal protection. However, the standard-issue field jacker liner can be attached / buttoned to it, to improve its usefulness. Field-jacket liners are issued in X-Small through X-Large sizes (with some length variations as well), and are shown here: https://www.armyproperty.com/lin/L70172In addition, the "M-65 Extreme Cold Weather" field-jacket liner should also be compatible with the IRS. This particular liner is shown here: http://www.armyproperty.com/lin/L70720Here are the NSN's for the IRS in ACU/UCP, Woodland Camo, and Desert Camo (DCU) patterns: ACU (UCP) Parka -- LIN http://www.armyproperty.com/lin/P05813XX-Small: http://www.armyproperty.com/nsn/8415-01-527-4610X-Small: http://www.armyproperty.com/nsn/8415-01-527-4611Small: http://www.armyproperty.com/nsn/8415-01-527-4612Medium: http://www.armyproperty.com/nsn/8415-01-527-4614Large: http://www.armyproperty.com/nsn/8415-01-527-4616X-Large: http://www.armyproperty.com/nsn/8415-01-527-4617 (Note: There is an alternative NSN that has been circulating for this item, namely, 7415-01-527-4617. That is not a real NSN. "Fake news.") XX-Large: http://www.armyproperty.com/nsn/8415-01-527-4618ACU (UCP) Trousers -- LIN http://www.armyproperty.com/lin/T38070XX-Small: http://www.armyproperty.com/nsn/8415-01-527-1537X-Small: http://www.armyproperty.com/nsn/8415-01-527-1541Small: http://www.armyproperty.com/nsn/8415-01-527-1545Medium: http://www.armyproperty.com/nsn/8415-01-527-1551Large: http://www.armyproperty.com/nsn/8415-01-527-1555 (Note: There is an alternative NSN that has been circulating for this item, namely, 7415-01-527-1555. That is not a real NSN. "More fake news.") X-Large: http://www.armyproperty.com/nsn/8415-01-527-1560XX-Large: http://www.armyproperty.com/nsn/8415-01-527-1561Woodland Camo Parka -- LIN http://www.armyproperty.com/lin/P05813XX-Small: http://www.armyproperty.com/nsn/8405-01-443-9606X-Small: http://www.armyproperty.com/nsn/8405-01-443-9612Small: http://www.armyproperty.com/nsn/8405-01-443-9618Mediuml: http://www.armyproperty.com/nsn/8405-01-443-9622Large: http://www.armyproperty.com/nsn/8405-01-443-9626X-Large: http://www.armyproperty.com/nsn/8405-01-443-9630XX-Large: http://www.armyproperty.com/nsn/8405-01-443-9633Woodland Camo Trousers -- LIN http://www.armyproperty.com/lin/T38070XX-Small: http://www.armyproperty.com/nsn/8405-01-443-9430X-Small: http://www.armyproperty.com/nsn/8405-01-443-9436Small: http://www.armyproperty.com/nsn/8405-01-443-9449Medium: http://www.armyproperty.com/nsn/8405-01-443-9487Large: http://www.armyproperty.com/nsn/8405-01-443-9488X-Large: http://www.armyproperty.com/nsn/8405-01-443-9493XX-Large: http://www.armyproperty.com/nsn/8405-01-443-9498Desert Camo (DCU) Parka XX-Small: http://www.armyproperty.com/nsn/8405-01-502-3412X-Small: http://www.armyproperty.com/nsn/8405-01-502-3413Small: http://www.armyproperty.com/nsn/8405-01-502-3415Medium: http://www.armyproperty.com/nsn/8405-01-502-3417Large: http://www.armyproperty.com/nsn/8405-01-502-3418X-Large: http://www.armyproperty.com/nsn/8405-01-502-3419XX-Large: http://www.armyproperty.com/nsn/8405-01-502-3420Desert Camo (DCU) Trousers XX-Small: http://www.armyproperty.com/nsn/8405-01-502-2139X-Small: http://www.armyproperty.com/nsn/8405-01-502-2141Small: http://www.armyproperty.com/nsn/8405-01-502-2142Medium: http://www.armyproperty.com/nsn/8405-01-502-2144Large: http://www.armyproperty.com/nsn/8405-01-502-2146X-Large: http://www.armyproperty.com/nsn/8405-01-502-2147XX-Large: http://www.armyproperty.com/nsn/8405-01-502-2148AF Tiger Stripe Parka (the trouser NSN's are unknown at this time) XX-Small: http://www.armyproperty.com/nsn/8405-01-542-9631X-Small: http://www.armyproperty.com/nsn/8405-01-542-9648Small: http://www.armyproperty.com/nsn/8405-01-542-9649Medium: http://www.armyproperty.com/nsn/8405-01-542-9998Large: http://www.armyproperty.com/nsn/8405-01-543-0001X-Large: http://www.armyproperty.com/nsn/8405-01-543-0003XX-Large: http://www.armyproperty.com/nsn/8405-01-543-0005
The Improved Rainsuit (IRS) is considered a GEN-II ECWCS item. It has been superseded by other products such as the GEN-III Level 5 and 6 jacket, but is still in widespread use.
The IRS is not insulated, so it does not provide any thermal protection. However, the standard-issue field jacker liner can be attached / buttoned to it, to improve its usefulness. Field-jacket liners are issued in X-Small through X-Large sizes (with some length variations as well), and are shown here: https://www.armyproperty.com/lin/L70172
In addition, the "M-65 Extreme Cold Weather" field-jacket liner should also be compatible with the IRS. This particular liner is shown here: http://www.armyproperty.com/lin/L70720
Here are the NSN's for the IRS in ACU/UCP, Woodland Camo, and Desert Camo (DCU) patterns:
ACU (UCP) Parka -- LIN http://www.armyproperty.com/lin/P05813 XX-Small: http://www.armyproperty.com/nsn/8415-01-527-4610 X-Small: http://www.armyproperty.com/nsn/8415-01-527-4611 Small: http://www.armyproperty.com/nsn/8415-01-527-4612 Medium: http://www.armyproperty.com/nsn/8415-01-527-4614 Large: http://www.armyproperty.com/nsn/8415-01-527-4616 X-Large: http://www.armyproperty.com/nsn/8415-01-527-4617 (Note: There is an alternative NSN that has been circulating for this item, namely, 7415-01-527-4617. That is not a real NSN. "Fake news.") XX-Large: http://www.armyproperty.com/nsn/8415-01-527-4618
ACU (UCP) Trousers -- LIN http://www.armyproperty.com/lin/T38070 XX-Small: http://www.armyproperty.com/nsn/8415-01-527-1537 X-Small: http://www.armyproperty.com/nsn/8415-01-527-1541 Small: http://www.armyproperty.com/nsn/8415-01-527-1545 Medium: http://www.armyproperty.com/nsn/8415-01-527-1551 Large: http://www.armyproperty.com/nsn/8415-01-527-1555 (Note: There is an alternative NSN that has been circulating for this item, namely, 7415-01-527-1555. That is not a real NSN. "More fake news.") X-Large: http://www.armyproperty.com/nsn/8415-01-527-1560 XX-Large: http://www.armyproperty.com/nsn/8415-01-527-1561
Woodland Camo Parka -- LIN http://www.armyproperty.com/lin/P05813 XX-Small: http://www.armyproperty.com/nsn/8405-01-443-9606 X-Small: http://www.armyproperty.com/nsn/8405-01-443-9612 Small: http://www.armyproperty.com/nsn/8405-01-443-9618 Mediuml: http://www.armyproperty.com/nsn/8405-01-443-9622 Large: http://www.armyproperty.com/nsn/8405-01-443-9626 X-Large: http://www.armyproperty.com/nsn/8405-01-443-9630 XX-Large: http://www.armyproperty.com/nsn/8405-01-443-9633
Woodland Camo Trousers -- LIN http://www.armyproperty.com/lin/T38070 XX-Small: http://www.armyproperty.com/nsn/8405-01-443-9430 X-Small: http://www.armyproperty.com/nsn/8405-01-443-9436 Small: http://www.armyproperty.com/nsn/8405-01-443-9449 Medium: http://www.armyproperty.com/nsn/8405-01-443-9487 Large: http://www.armyproperty.com/nsn/8405-01-443-9488 X-Large: http://www.armyproperty.com/nsn/8405-01-443-9493 XX-Large: http://www.armyproperty.com/nsn/8405-01-443-9498
Desert Camo (DCU) Parka XX-Small: http://www.armyproperty.com/nsn/8405-01-502-3412 X-Small: http://www.armyproperty.com/nsn/8405-01-502-3413 Small: http://www.armyproperty.com/nsn/8405-01-502-3415 Medium: http://www.armyproperty.com/nsn/8405-01-502-3417 Large: http://www.armyproperty.com/nsn/8405-01-502-3418 X-Large: http://www.armyproperty.com/nsn/8405-01-502-3419 XX-Large: http://www.armyproperty.com/nsn/8405-01-502-3420
Desert Camo (DCU) Trousers XX-Small: http://www.armyproperty.com/nsn/8405-01-502-2139 X-Small: http://www.armyproperty.com/nsn/8405-01-502-2141 Small: http://www.armyproperty.com/nsn/8405-01-502-2142 Medium: http://www.armyproperty.com/nsn/8405-01-502-2144 Large: http://www.armyproperty.com/nsn/8405-01-502-2146 X-Large: http://www.armyproperty.com/nsn/8405-01-502-2147 XX-Large: http://www.armyproperty.com/nsn/8405-01-502-2148
AF Tiger Stripe Parka (the trouser NSN's are unknown at this time) XX-Small: http://www.armyproperty.com/nsn/8405-01-542-9631 X-Small: http://www.armyproperty.com/nsn/8405-01-542-9648 Small: http://www.armyproperty.com/nsn/8405-01-542-9649 Medium: http://www.armyproperty.com/nsn/8405-01-542-9998 Large: http://www.armyproperty.com/nsn/8405-01-543-0001 X-Large: http://www.armyproperty.com/nsn/8405-01-543-0003 XX-Large: http://www.armyproperty.com/nsn/8405-01-543-0005
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