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Zefal Isotherm H20 Bottle

MSRP $ 10.00
# of Reviews 4
Average Rating 4/5
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Submitted by Steve a Cross Country Rider from Calgary Alberta Canada
Date Reviewed: January 2, 2009
Favorite Trail:Elbow Loop
Duration Product Used:More than 3 years
Price Paid: $10.00
Purchased At:It was a gift
Strengths:It's black. I've got model A1050 which looks a bit different from the photo here.
Weaknesses:It leaks from around the cap, especially badly for hot liquids which is what I mainly want it for. I've tried replacing the gasket. It still leaked.
Bottom Line:Design flaw -- it leaks like a sieve. I don't use it. So why don't I toss it? Well it looks cool...
Value Rating:1Overall Rating:1

Submitted by Roy Duhamel a Weekend Warrior from Missouri
Date Reviewed: June 7, 2003
Favorite Trail:Katy Trail - MO
Duration Product Used:1 Year
Price Paid: $8.00
Purchased At:REI
Strengths:Keeps liquids colder longer than Polar (I have 4 of those)
Nice pearl colour, fits holder well.
Weaknesses:Only 17 oz - Polar has 24
Similar Products Used:Polar, standard non-insulated (yuck) bottles
Bike Setup:Cannondale Road Warrior 1000, Brooks B17 special saddle, thudbuster, cont twister pro (great tires)
Bottom Line:The Zefal is (so far) the best at keeping liquid colder longer. I'll use my Polar bottles during cooler weather.
Value Rating:5Overall Rating:5

Submitted by Eric a Weekend Warrior from Boise, ID, USA
Date Reviewed: August 22, 2002
Duration Product Used:Less than 1 month
Price Paid: $10.00
Purchased At:REI
Strengths:Appears to work as advertised in keeping cold stuff cold. Dunno about hot stuff, but insulation is insulation, right? Fits well in holder.
Weaknesses:Fixed internal cup design does not allow for squirting fluid out. Only 17oz of fluid capacity.
Similar Products Used:Standard water bottles, most of which broke after pulling on the top a few times. By comparison, REI Sureshot bottle works pretty well with diaphragm top, but does not insulate.
Bike Setup:'99 K2 4000, Noleen crosslink, Shimano M545 clipless, Mythos XC tires
Bottom Line:Bottle fits well in holder, keeps stuff cold, but Zefal should have made internal cup flexible for squirting.
Value Rating:2Overall Rating:5

Submitted by Chris Matthews a Weekend Warrior from Omaha
Date Reviewed: July 9, 2002
Favorite Trail:all trails/roads
Duration Product Used:1 Year
Price Paid: $10.00
Purchased At:LBS
Strengths:Robust, soft outer shell. Keeps drinks cold/hot longer than any other tried! Very wide neck for ice cubes!
Weaknesses:None found
Similar Products Used:Polar bottle, Maxchill, beer cans, various uninsulated bottles.
Bike Setup:Do you give a rats a**?
Bottom Line:I thought the Polar bottles were good 'til I tried these!
I take 2 of these on a 2 hour ride, half filled with ice then topped up with water... at the end of the ride there is still ice in the bottle! These bottles give exceptional insulation! They don't have that plastic smell/taste like some bottles either!
Value Rating:5Overall Rating:5






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