US Patent 11672293 Ultra-slim fastener

An ultra-slim fastener for a garment includes male and female parts engagable by inclining the male part while inserting a foot into a cavity of the female part, and pivoting the parts to a co-planar orientation. The female has a roof thickness, and the foot may be offset by at least the roof thickness. The male and female may include flanges which have a symmetrical appearance when engaged. The male and female may include a plurality of protrusions distributed throughout a weld region for welding the parts to a garment piece. Features of the fastener improve tensile strength, increase flexibility, and improve comfort.