Whipperj's Gear Review #10
TASC Bamboo-Merino Base Layer Level B 1/4 Zip
Activity: Mountain Guide Training Camp
Place: Rupal face Nanga Parbat northern Pakistan
Time of year: Early spring season.
Conditions: Hot alpine sunny days with a day or two of snow and cold alpine nights.
Work load: 16 hours a day of climbing for 14 days.
Question: What would you wear for a base layer?
Okay grated this is a question few people would ever have to answer but I do. Training mountain guides in Pakistan has been my privilege for many years now. And, in doing so I have been at the brunt on the Karakorum, Himalayas, and Hindu Kush weather systems on many a day. So the question is what to wear?
Up until this year like many people I wore a Polyester base layer and anyone who has had to wear a Polyester base layer for a few days in a row, well lets just say the name for my shirt was yak killer! Polyester drys fast but never really wicks well. So when the rep for TASC here in Canada approached me about trying TASC’s Bamboo-Merino 1/4 zip on my next trip to Pakistan, I was up to try something new.
TASC’s hype was the funk-free smell vs Polyester’s nostril killing odors. The thing is I can live with the smell but in my job keeping dry & warm equals life.
The TASC Bamboo-Merino Base Layer Level B 1/4 Zip combines 65 percent bamboo, 30 percent Merino Wool, and 5 percent Elastane. The bamboo gave the shirt a soft and more comfortable feel that I ever had from Polyester. The Merino Wool did have a slight itch to it for the first day but after that I have never noticed it again.
The environmental impact of bamboo viscose is not the best. TACS has improved on that by using a closed loop system to recover and reuse 99% of the caustic soda solution used in the manufacturing process. Tasc’s bamboo is certified organic by the OCIA.
As far a warmth goes, dry equals warm and the wicking abilities of the bamboo Merino Wool combo stunned me. Pushing hard day after day on Nanga Parbat the base layer’s face wetted out but I stayed dry. Warm days of up to 20C and cool night at -10C. 14 days in the same base layer. This is where even the best products start to fail. So what failed? Not one aspect of what TASC advertised their product does. Yes, this includes the odder reducing aspect of the Bamboo-Merino wool.
After 14 days in the same base layer in Pakistan, you burn it. For there is no hope that the smell will ever come out. But, TASC more than lived up to the hype. I have never had a base layer I could keep or better put, I would wanted to keep after an expedition before. My TASC Bamboo-Merino Base Layer Level B 1/4 Zip after only one wash smelled like new and performed like wise.
With all that said the one thing that stood out for me was the SPF 50+. Yes, of all the thing that the TASC Bamboo-Merino Base Layer Level B 1/4 Zip offers this is the one thing that is over looked. One afternoon I was up on the mountain running a anchor building course and I pulled up my sleeves to half forearm just to get a little more freedom well building anchors. 3 hours later at base camp I started to feel the sunburn kick in! This photo sums up the difference between the SPF 50+ and none.
To sum up the TASC Bamboo-Merino Base Layer Level B 1/4 Zip. Well, I’ve recycled all my old Polyester base layers and don’t miss the smell at all. For once a company’s product does what it claimed to do. Don’t take my word for it try some of TASC’s stuff out and see for yourselves.
http://www.tascperformance.com














