The long zip goes high up the neck and combined with the fit does an effective job of minimising the impact of wind and cold when needed while allowing easy ventilation when pushing the pace. As a synthetic base layer you expect good wicking and fast drying and the Atacazo doesn't disappoint on these features, or its weight and packed size. The use of an antimicrobial treatment is a pretty standard feature on synthetics these days and while the Atacazo won't compare with merino it's comparable with other sysnthetics in terms of odour protection.
As a baselayer the Atacazo would seem better suited to the winter months where the fit and fabrics combine to produce a warm layer of air but with typical Mammut style it doesn't look out of place as a single layer year round .... although it does show every gram of weight where you don't want it to show and every curve. The long zip and drop tail also make the Atacazo a good choice on the bike where the adjustable ventilation and speed of wicking really make a difference. At the RRP of £60 the price point is reasonable for such a well constructed and multifunctional synthetic layer, still substantially lower than a merino layer, and with street prices being £5 - £10 lower it ticks all the boxes.

Price: £60

Weight: 152g

Colour: Black/Graphite, Inferno

Features:

- Regulated humidity transport prevents rapid cooling
- Antimicrobial feature to avoid unpleasant odor
- Light and stows easily
- Extra-long front zip for better ventilation and good fit
- Offset seams reduce friction on the shoulders
- Ultraviolet Protection Factor (UPF) 20+
- Slim Fit

Pros: Waffle fleece, built in spf, long zip, drop tail, multi use

Cons: None yet

Note: This article was restored from the archives. It's published creation date is inaccurate.