bi-swing

bi-swing

(ˈbaɪˌswɪŋ)

adj.
1. (of a garment) made with a deep pleat from the back waistline to the shoulder on each side, to permit free arm movement.
n.
2. a bi-swing garment.
[1965–70]
References in periodicals archive ?
Absent the boxy fit older waxed canvas coats were known for, the Tensaw is cut with set-in shoulders, gusseted underarms, and a bi-swing back to flow with the hunter as he shoulders the shotgun on a blistering covey of quail or a rocketing rooster.
This shirt, available in Loden or Cornsilk, is designed with side panels and bi-swing help to provide excellent fit and comfort.
Mandarin stand-up style collar with concealed snap closure, pleated bi-swing back.
Underarm gussets and bi-swing back allow for extra reaching room, while the princess seams and adjustable side taps allow for a better fit.
PDUs feature expandable comfort waists and for women, a natural waistline, plus bi-swing shoulders and a diamond-gusseted crotch for durability.
All this with Bi-Swing Bowhunter's Back--custom made to YOUR specifications
The outer jacket has a polyester micro-fleece shell and soft nylon lining; zip-off hood; bi-swing back with license tab and covered slit for treestand harness tether; articulated elbows and gusseted armpits; and plenty of pockets.
Heavy duty front zipper and snap closup placket, Velcro-snap closure stand collar and adjustable Velcro-closure cuffs, snap down epaulets, and bi-swing Back for freedom of movement.
Arctic Coat - Quilt Lined, with same basic materials plus under collar has snaps for optional hood, zipper front wind flap with Velcro[TM] closure, extra-large front pockets and two chest pockets, also with Velcro[TM] flap closures, split back with bi-swing, pleated elbow, rib-knit storm cuff in sleeve, inside waist drawcord adjustment and underarm ventilation.
The shirt has a bi-swing action back and a larger shirt bottom for comfort when it is worn outside of pants.