searching web for reusable ice packs for other use, came across "Chillerz",  
site says this pack can stay frozen for "days" not just hours. 
 
If it works as advertised may be a good option for traveling moms who need  
to transport pumped milk via packed luggage or via mail or other shipping  
service to get milk to baby:
 
_http://www.chillerz.com/what.htm_ (http://www.chillerz.com/what.htm) 
 
google "reuseable ice packs" for other options.
 
(no financial interest in these products)
 
 
 
Debbie  Tobin
RN BSN IBCLC LCCE

Fairfax County, Virginia suburbs  outside the Washington DC beltway

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