Proto Top
£179 / €225 / $249

The Proto top is a simple, ultralight, pull-over style. The half-zip has a generous length for easy putting on/taking off, as well as giving some scope for venting excess heat. Likewise, the underarm area has no down insulation to aid body temperature regulation. Half-zip styles are lighter and warmer than their full-zip versions, and are perfect for anyone seeking to maximise their warmth-for-weight efficiency.

The Proto top has been designed as a pure mid-layer insulation garment, and hence has no pockets. The fill is 60 g of 800 fill-power ethically recovered Polish goose down, and is held in place by a stitch-through construction with horizontal and vertical baffles.




Lycra hem and cuffs
No fill in underarm baffles
Supplied with a separate stuff sack
Filled exclusively with ethically recovered Polish goose down

Technical Specifications

Fill 800 fill power (EU) Polish white goose down
Weight 195 g (size M)
Fill Weight 60 g (size M)
Shell Fabric 15 denier nylon ripstop, 30 g/m² 
Lining Fabric 15 denier ripstop Nylon, 30 g/m²
Sizes XS, S, M, L, XL
Made In China

Size Chart


X-Small cm 84-85 74-76 69-74
Small cm 90-97 76-79 75-80
Medium cm 98-103 79-82 80-82
Large cm 104-110 85-87 88-95
X-Large cm 111-118 86-89 96-100



X-Small in 33-35 29-30 27-29
Small in 36-38 30-31 30-31
Medium in 39-41 31-32 32-34
Large in 42-44 32-33 35-37
X-Large in 45-47 34-35 38-40

Care & Attention

Down is a very resilient insulating material and, with basic care, any down jacket should last you a very long time.
There are two simple rules to ensure longevity:
1. Always store your jacket uncompressed in a dry, airy place
2. Try to keep it as clean as possible to minimize washing (this ultimately damages the down).
We highly recommend you hand-wash your down garment or, alternatively, use a professional service. You can download washing instructions here.