Arch4

Arch4 designs understated, high-quality knitwear that you’ll reach for often and cherish for years to come. The brand uses only the finest Mongolian-sourced organic cashmere, which is unmatched in softness, lightness and warmth. Shop our selection of sweaters in earthy hues.

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ARCH4
Marisol cashmere cardigan
$450
ARCH4
Rosanna cashmere cardigan
$845
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Marisol cashmere cardigan
$450
ARCH4
Cashmere T-shirt
$345
ARCH4
Dorian striped cashmere sweater
$415
ARCH4
Victoria striped cashmere polo shirt
$675
ARCH4
Sunny crocheted cotton sweater
$395
ARCH4
Cordelia crocheted cotton, silk and cashmere-blend maxi dress
$640
ARCH4
Octavia cropped striped cashmere polo shirt
$450
ARCH4
Ray crocheted cotton straight-leg pants
$430
ARCH4
Elio cashmere cardigan
$450
ARCH4
Clarbeston cotton, silk and cashmere-blend maxi dress
$495
ARCH4
Caspian cashmere cardigan
$450
ARCH4
Darya cashmere polo shirt
$395
ARCH4
Cashmere and silk-blend wrap
$625
ARCH4
Off-the-shoulder silk and cashmere-blend top
$275
ARCH4
Islington cashmere sweater
$945
NET SUSTAIN
ARCH4
Courchevel embroidered argyle cashmere sweater
$945
60% off
$378
FINAL SALE
NET SUSTAIN
ARCH4
Kai cashmere sweater
$375
ARCH4
Cotton, silk and cashmere mini dress
$395
ARCH4
Islington cashmere sweater
$945
40% off
$567
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Chiswick cashmere sweater
$440
40% off
$264
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Victoria oversized striped cashmere polo sweater
$675
NET SUSTAIN
ARCH4
Estelle cashmere sweater
$845
40% off
$507
NET SUSTAIN
ARCH4
Chapman argyle cashmere sweater
$795
50% off
$398
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Oversized cashmere and silk-blend sweater
$795
30% off
$557
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
World's End oversized cashmere turtleneck sweater
$845
40% off
$507
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Ariana ribbed cashmere turtleneck sweater
$450
50% off
$225
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Marilyn off-the-shoulder organic cashmere midi dress
$850
50% off
$425
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Verona organic cashmere and silk-blend sweater and scarf set
$795
50% off
$398
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Queen's Gate organic cashmere cardigan
$535
50% off
$268
NET SUSTAIN
ARCH4
Bessi cashmere polo sweater
$720
40% off
$432
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Janelle cashmere cardigan
$845
40% off
$507
NET SUSTAIN
ARCH4
Ariana ribbed organic cashmere sweater
$450
40% off
$270
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Rosanna cashmere cardigan
$845
50% off
$423
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Ella ribbed cashmere half-zip sweater and leggings ski set
$950
40% off
$570
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Nancy ribbed cashmere scarf
$575
60% off
$230
FINAL SALE
NET SUSTAIN
ARCH4
Bea cashmere cardigan
$495
ARCH4
King's Road organic cashmere sweater
$795
40% off
$477
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
World's End oversized cashmere turtleneck sweater
$845
NET SUSTAIN
ARCH4
Bessi cashmere polo sweater
$720
50% off
$360
NET SUSTAIN
ARCH4
Penelopy lace-trimmed ribbed organic cashmere midi skirt
$495
40% off
$297
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Sabrina pleated organic cashmere midi skirt
$845
40% off
$507
NET SUSTAIN
ARCH4
Nancy ribbed cashmere scarf
$575
60% off
$230
FINAL SALE
NET SUSTAIN
ARCH4
Mona cashmere wrap
$840
50% off
$420
NET SUSTAIN
ARCH4
Snowmass Fair Isle cashmere sweater
$1,075
40% off
$645
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Monroe off-the-shoulder organic cashmere top
$495
30% off
$347
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
The Ivy cashmere sweater
$795
40% off
$477
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Austria Fair Isle cashmere scarf
$575
60% off
$230
FINAL SALE
NET SUSTAIN
ARCH4
Cashmere travel set
$260
40% off
$156
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
New Cami ribbed organic cashmere cardigan
$475
50% off
$238
NET SUSTAIN
ARCH4
Sackville cashmere cardigan
$695
50% off
$348
NET SUSTAIN
ARCH4
Tulip crocheted cashmere cardigan
$765
40% off
$459
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Pimlico cable-knit cashmere cardigan
$750
40% off
$450
NET SUSTAIN
ARCH4
Foxridge organic cashmere cardigan
$645
40% off
$387
NET SUSTAIN
ARCH4
Organic cashmere sweater
$450
40% off
$270
NET SUSTAIN
ARCH4
Snowbird cashmere wrap
$455
50% off
$228
NET SUSTAIN
ARCH4
Sloane embroidered argyle cashmere sweater
$795
30% off
$557
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Rome cropped organic cashmere and silk-blend cardigan
$465
30% off
$326
NET SUSTAIN
ARCH4
Norma Jean organic cashmere midi skirt
$590
30% off
$413
NET SUSTAIN
ARCH4
Patrizia cable-knit cashmere turtleneck sweater
$695
40% off
$417
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Lorenz Fair Isle cashmere beanie
$195
60% off
$78
FINAL SALE
NET SUSTAIN
ARCH4
Fair Isle cashmere half-zip sweater
$865
30% off
$606
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Ribbed cashmere wrist warmers
$190
40% off
$114
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Jennifer ribbed organic cashmere polo shirt
$475
40% off
$285
NET SUSTAIN
ARCH4
Clara cashmere beanie
$185
50% off
$93
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Cable-knit cashmere balaclava
$205
40% off
$123
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Sasha belted ribbed cashmere cardigan
$1,065
30% off
$746
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Ariana ribbed turtleneck cashmere sweater
$450
40% off
$270
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Jessie ribbed cashmere gloves
$195
50% off
$98
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Ribbed cashmere wrist warmers
$190
50% off
$95
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
+ NET SUSTAIN The Ivy cashmere sweater
$795
50% off
$398
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Lorenz Fair Isle cashmere beanie
$195
40% off
$117
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Juliann ribbed cashmere gloves
$190
40% off
$114
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Elward organic cashmere cardigan
$845
30% off
$592
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Skylark ribbed organic cashmere midi dress
$795
30% off
$557
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Storme frayed organic wool and cashmere-blend wide-leg pants
$565
40% off
$339
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Oli & Eloise cashmere hoodie and track pants set
$1,325
30% off
$928
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Cassie cable-knit silk and organic cashmere-blend tank
$325
30% off
$228
NET SUSTAIN
ARCH4
Selcombe layered two-tone organic cashmere top
$295
30% off
$207
NET SUSTAIN
ARCH4
Selcombe layered two-tone organic cashmere top
$295
30% off
$207
NET SUSTAIN
ARCH4
Nara ribbed cashmere zip-up cardigan
$845
30% off
$592
EXCLUSIVE
NET SUSTAIN
ARCH4
Clara cashmere beanie
$185
50% off
$93
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Janelle cashmere cardigan
$845
40% off
$507
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Jessie ribbed cashmere gloves
$195
50% off
$98
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Eldergrove tie-detailed organic cashmere sweater
$575
30% off
$403
LOW STOCK
NET SUSTAIN
ARCH4
+ NET SUSTAIN Janelle organic cashmere cardigan
$845
40% off
$507
NET SUSTAIN
ARCH4
Nillie ribbed organic cashmere midi skirt
$630
60% off
$252
FINAL SALE
NET SUSTAIN
ARCH4
Jackson Fair Isle cashmere sweater
$845
40% off
$507
LOW STOCK
NET SUSTAIN
ARCH4
Juliann ribbed cashmere gloves
$190
40% off
$114
NET SUSTAIN
ARCH4
Elsa cashmere sweater and track pants set
$1,325
40% off
$795
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
Partridges ribbed cashmere sweater and track pants set
$1,325
50% off
$663
LOW STOCK
NET SUSTAIN
ARCH4
Marina cable-knit cashmere sweater
$750
50% off
$375
NET SUSTAIN
ARCH4
Ezra cashmere bandana
$175
40% off
$105
LOW STOCK
NET SUSTAIN
ARCH4
Holyhead organic cashmere sweater
$450
30% off
$315
LOW STOCK
NET SUSTAIN
ARCH4
The Tate organic cashmere cardigan
$945
60% off
$378
FINAL SALE
NET SUSTAIN
ARCH4
Janelle cashmere cardigan
$845
40% off
$507
USE CODE FLASH15 AT CHECKOUT
NET SUSTAIN
ARCH4
+ NET SUSTAIN The Ivy cashmere sweater
$795
50% off
$398
NET SUSTAIN
ARCH4
Selcombe layered two-tone organic cashmere top
$295
30% off
$207
LOW STOCK
NET SUSTAIN
ARCH4
Ella ribbed cashmere sweater and leggings set
$950
60% off
$380
FINAL SALE
NET SUSTAIN
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