100% polyester. Thermal Polartec fleece fabric. Half zip fastening. Chest pocket. Kangaroo pocket. Elastic bound cuffs. Curved hem. Regular fit. Snow Peak’s Thermal Boa Fleece Pullover – one of the fleeciest fleeces we’ve ever had the pleasure of crossing paths with. This is the type of thing we imagine has been designed to be worn back at base camp, but thanks to the aforementioned fleece fabric (which is that dangerously-toasty Polartec stuff), there’s no reason why this can’t be worn during all manner of cold weather sojourns as well.