Madewell Shaker stitch cotton sweater, $118/$82.80 at Nordstrom

Polo Ralph Lauren Iconic cable-knit cashmere sweater, $498/$249.99 at Ralph Lauren

Cashmere crew-neck sweater, $160/$84.99 at Banana Republic

Heritage cotton crewneck sweater, $79.50/$68.60 at J.Crew

Marine Layer Noah rollneck sweater, $138 at Huckberry

Flint and Tinder Bolinas Johnny Collar sweater, $118 at Huckberry

Howlin Birth of the Cool sweater, $255 at Huckberry

McTavish Shoreline Fisherman sweater, $200 at Huckberry

V-neck ribbed sweater, $138 at J.Crew

Tonywack Brushed Shaggy Dog V-neck sweater, $230 at Ssense

Merino V-neck sweater, $180 at Banana Republic

Made-in-Scotland Cashmere V-neck sweater, $595 at J. PRESS

Cashmere V-neck sweater, $328 at Todd Snyder

Pure wool V-neck sweater, $65 at Atorie

V-neck sweater, $118 at Madewell

V-neck sweater, $85/$59.99 at Abercrombie & Fitch

Ghiaia Cashmere-cotton V-neck sweater, $660 at MR PORTER

Wool V-neck sweater, $643.50 at AURALEE

Wool Lounger V-neck sweater, $515 at Carter Young

Kemp fluffy V-neck sweater, $250 at Wax London

Softspun Alpaca V-neck sweater, $468/$140.40 at Vince

Ssstein Cashmere V-neck sweater, $750 at MR PORTER

Second / Layer Cashmere-blend V-neck sweater, $660 at MR PORTER

NN07 Flint merino V-neck sweater, $475 at MR PORTER

rag & bone Ribbed V-neck sweater, $600 at MR PORTER

V-neck knit sweater, $290 at Massimo Dutti

Cashmere crewneck sweater, $158/$110.60 at J.Crew

NAADAM Cashmere crewneck sweater, $98/$76.94 at Amazon.com

Merino crew-neck sweater, $90/$54 at Banana Republic

CashSoft crew sweater, $69.95/$48.96 at Gap

Lemaire Alpaca-blend sweater, $690 at MR PORTER

Aimé Leon Dore Logo sweater, $300 at MR PORTER

Seed stitch dress shirt sweater, $198/$139 at Rowing Blazers

Rollneck crew sweater, $90/$44.97 at Abercrombie & Fitch

Made-in-U.S.A. cotton crewneck sweater, $148/$111 at J. PRESS

Fisherman Johnny-collar sweater, $118 at J.Crew

Lambswool Shaker stitch sweater, $475 at J. PRESS

Tuck stripe knit, $198 at Billy Reid

Silk-cashmere crewneck, $298 at Todd Snyder

Cotton-blend sweater, $79.99/$39.99 at Mango

Cotton-silk sweater, $129 at Todd Snyder

Relaxed wool crewneck, $220 at Nothings Something

Textured cashmere sweater, $448 at Billy Reid

Cotton thermal sweater, $110 at Banana Republic

Incotex Zanone ribbed virgin wool sweater, $465 at MR PORTER

100% Organic cotton fisherman crewneck sweater, $59.90 at Quince

EasyCash Merino Cable Knit Sweater, $228/$125 at Huckberry

Luxe cashmere sweater, $298/$119.80 at Naadam