Though making your own technical outdoor gear may seem out of reach, all it takes is a good pattern, solid instructions, techie fabrics, and some sewing skill. Thru-Hiker puts the pieces in your hands; you add the skill and patience. This vest kit is a good one to tackle for starters, and includes a toasty layer of Primaloft, Momentum90 pre-mium ultralite ripstop outer layer, zipper, pull, and the flexibility to sew slim fit or regular.