Smartwool

PhD Cycle Ultra Light Micro

$15.95 USD
MSRP
Smartwool - PhD Cycle Ultra Light Micro

Product Information

These are the lightest Merino socks on the market. They feature the 4 Degree™ elite fit system, a virtually seamless toe, and patented technology to help make them outlast a year's worth of centuries.
54% Merino Wool, 42% Nylon, 4% Elastane

  • 4 Degree™, elite fit system uses two elastics for greater stretch and recovery to keep the sock in place
  • Patented ReliaWool™, technology in high impact areas increases durability
  • Strategically placed mesh ventilation zones
  • Virtually seamless toe
  • 1.5" overall height

Contact a dealer for availability
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Select a Store

Selected Store

109 locations
108 other locations

Boulder Running Company

2775 Pearl St
Boulder, CO 80302
Other Smartwool Available.
2.7 mi
Info

REI - Boulder

1789 28th St
Boulder, CO 80301
Other Smartwool Available.
2.8 mi
Closed Open today
at 9am
Info

Moosejaw

1755 29th St #1092
Boulder, CO 80301
Other Smartwool Available.
3.0 mi
Closed Open today
at 10am
Info

Brown's Shoe Fit Longmont

[full star] [full star] [full star] [full star] [full star] (2)
373 Main St
Longmont, CO 80501
Other Smartwool Available.
In-Store Pickup Available
14.4 mi
Closed Open today
at 10am
Info

REI - Westminster

14696 Delaware St
Westminster, CO 80023
Other Smartwool Available.
17.5 mi
Closed Open today
at 10am
Info

Vital Outdoors

1224 Washington Ave
Golden, CO 80401
Other Smartwool Available.
19.6 mi
Closed Open today
at 10am
Info

REI - Denver Flagship

1416 Platte St
Denver, CO 80202
Other Smartwool Available.
24.7 mi
Closed Open today
at 9am
Info

Boulder Running Company

[full star] [full star] [full star] [full star] [full star] (1)
2500 E 1st Ave
Denver, CO 80206
Other Smartwool Available.
28.5 mi
Info

REI - Lakewood

5375 S Wadsworth Blvd
Lakewood, CO 80123
Other Smartwool Available.
30.5 mi
Closed Open today
at 9am
Info

SCHEELS ALL SPORTS

4755 Ronald Reagan Blvd
Johnstown, CO 80534
Other Smartwool Available.
31.2 mi
Closed Open today
at 9am
Info

Boulder Running Company

8116 W Bowles Ave
Littleton, CO 80123
Other Smartwool Available.
31.3 mi
Info

REI - Fort Collins

4025 S College Ave
Fort Collins, CO 80525
Other Smartwool Available.
36.8 mi
Closed Open today
at 9am
Info

REI - Greenwood Village

9000 E Peakview Ave
Greenwood Village, CO 80111
Other Smartwool Available.
37.3 mi
Closed Open today
at 9am
Info

Boulder Running Company

8545 E Arapahoe Rd
Greenwood Village, CO 80112
Other Smartwool Available.
37.4 mi
Info

Brown's Shoe Fit Fort Collins

3500 S College Ave
Fort Collins, CO 80525
Other Smartwool Available.
In-Store Pickup Available
37.4 mi
Closed Open today
at 9:30am
Info

REI - Dillon

306 Dillon Ridge Rd
Dillon, CO 80435
Other Smartwool Available.
48.2 mi
Closed Open today
at 9am
Info

Fleet Feet Boulder

2624 Broadway
Boulder, CO 80304
Authorized Smartwool Dealer
1.6 mi
Info

Pedestrian Shops

1425 Pearl St
Boulder, CO 80302
Authorized Smartwool Dealer
1.9 mi
Info

Title Nine

1801 Pearl St
Boulder, CO 80302
Authorized Smartwool Dealer
2.1 mi
Closed Open today
at 10am
Info

Go Far Shop

2005 Pearl St
Boulder, CO 80302
Authorized Smartwool Dealer
2.2 mi
Info

The North Face

1711 29th St
Boulder, CO 80301
Authorized Smartwool Dealer
3.0 mi
Info

Neptune Mountaineering

633 S Broadway
Boulder, CO 80305
Authorized Smartwool Dealer
4.4 mi
Closed Open today
at 10am
Info

Little Bird

112 2nd Avenue
Niwot, CO 80544
Authorized Smartwool Dealer
8.9 mi
Info

Runners Roost

459 McCaslin Blvd
Louisville, CO 80027
Authorized Smartwool Dealer
8.9 mi
Info

DICK'S Sporting Goods

31 W Flatiron Crossing Dr
Broomfield, CO 80021
Authorized Smartwool Dealer
11.5 mi
Info

Nordstrom

21 W Flatiron Crossing Drive
Broomfield, CO 80021
Authorized Smartwool Dealer
11.5 mi
Info

JAX Lafayette Outdoor Gear

900 US-287
Lafayette, CO 80026
Authorized Smartwool Dealer
11.6 mi
Open Info

Mountain Man Outdoor Store

20 Lakeview Dr #111
Nederland, CO 80466
Authorized Smartwool Dealer
11.6 mi
Info

The Walking Company - FlatIron Crossing

1 W Flatiron Crossing Dr #2062
Broomfield, CO 80021
Authorized Smartwool Dealer
11.6 mi
Info

Dillard's

41 W Flatiron Circle
Broomfield, CO 80021
Authorized Smartwool Dealer
11.6 mi
Info

Eldora Mountain Resort

2861 Eldora Ski Rd
Nederland, CO 80466
Authorized Smartwool Dealer
11.6 mi
Info

JAX Lafayette Ranch & Home

400 W South Boulder Rd
Lafayette, CO 80026
Authorized Smartwool Dealer
11.8 mi
Open Info

DICK'S Sporting Goods

210 Ken Pratt Blvd
Longmont, CO 80504
Authorized Smartwool Dealer
14.2 mi
Info

Road Runner Sports

10436 Town Center Dr
Westminster, CO 80021
Authorized Smartwool Dealer
15.8 mi
Closed Open today
at 9am
Info

JAX Broomfield Outdoor Gear, Ranch & Home

5005 W 120th Ave
Broomfield, CO 80020
Authorized Smartwool Dealer
15.9 mi
Open Info

Murdoch's Ranch & Home Supply

2255 Main St
Longmont, CO 80501
Authorized Smartwool Dealer
15.9 mi
Info

Murdoch's Ranch & Home Supply

9150 Wadsworth Pkwy
Westminster, CO 80021
Authorized Smartwool Dealer
16.8 mi
Info

DICK'S Sporting Goods

16521 Washington St
Thornton, CO 80023
Authorized Smartwool Dealer
17.5 mi
Info

Duluth Trading Company

16557 Washington St
Thornton, CO 80023
Authorized Smartwool Dealer
17.6 mi
Info

Endurance House

13640 Orchard Pkwy
Westminster, CO 80023
Authorized Smartwool Dealer
17.8 mi
Info

Cabela's

[full star] [no star] [no star] [no star] [no star] (1)
14050 Lincoln St
Thornton, CO 80023
Authorized Smartwool Dealer
18.2 mi
Info

Arvada Army Navy Surplus

5701 Olde Wadsworth Blvd
Arvada, CO 80002
Authorized Smartwool Dealer
19.9 mi
Info

Larson's Ski & Sport

[full star] [full star] [full star] [full star] [full star] (1)
4715 Kipling St
Wheat Ridge, CO 80033
Authorized Smartwool Dealer
20.1 mi
Closed Open today
at 10am
Info

Mucilli's Shoes and Repair

3244 Youngfield St
Wheat Ridge, CO 80033
Authorized Smartwool Dealer
20.4 mi
Info

Sportsman's Warehouse

11 W 84th Ave
Thornton, CO 80260
Authorized Smartwool Dealer
21.1 mi
Info

Duluth Trading Co

16630 W Colfax Ave
Golden, CO 80401
Authorized Smartwool Dealer
22.0 mi
Info

Pedestrian Shops

2368 15th St
Denver, CO 80202
Authorized Smartwool Dealer
24.7 mi
Info

Runners Roost

7978 W Alameda Ave
Lakewood, CO 80226
Authorized Smartwool Dealer
25.1 mi
Info

DICK'S Sporting Goods

7313 W Alaska Dr
Lakewood, CO 80226
Authorized Smartwool Dealer
25.3 mi
Info

Devils Thumb Ranch Resort & Spa

3530 County Rd 83
Tabernash, CO 80478
Authorized Smartwool Dealer
25.5 mi
Info

Boone Mountain Sports

2962 Evergreen Pkwy
Evergreen, CO 80439
Authorized Smartwool Dealer
25.6 mi
Closed Open today
at 10am
Info

Estes Park Mountain Shop

2050 Big Thompson Ave
Estes Park, CO 80517
Authorized Smartwool Dealer
25.8 mi
Info

Local Experience

78966 US-40
Winter Park, CO 80482
Authorized Smartwool Dealer
26.3 mi
Info

Brownfield's - Souvenirs & Outdoor Gear

350 E Elkhorn Ave
Estes Park, CO 80517
Authorized Smartwool Dealer
26.4 mi
Info

Plum Creek Shoe Station

135 Moraine Avenue
Estes Park, CO 80517
Authorized Smartwool Dealer
26.4 mi
Info

Outdoor World

156 E Elkhorn Ave
Estes Park, CO 80517
Authorized Smartwool Dealer
26.5 mi
Info

Vital Outdoors

900 Lincoln St
Denver, CO 80203
Authorized Smartwool Dealer
26.9 mi
Info

Ski Broker Inc

601 Zerex St
Fraser, CO 80442
Authorized Smartwool Dealer
27.2 mi
Info

Bass Pro Shops

7970 E 49th Avenue
Denver, CO 80238
Authorized Smartwool Dealer
27.7 mi
Info

Denver Country Club

1700 E First Avenue
Denver, CO 80218
Authorized Smartwool Dealer
28.2 mi
Info

Little Feet

201 University Boulevard
Denver, CO 80206
Authorized Smartwool Dealer
28.3 mi
Info

The Fall Line

250 Columbine St #115
Denver, CO 80206
Authorized Smartwool Dealer
28.4 mi
Info

DICK'S Sporting Goods

2269 Prairie Center Pkwy
Brighton, CO 80601
Authorized Smartwool Dealer
28.4 mi
Info

DICK'S Sporting Goods

9550 Village Pl Blvd
Brighton, MI 48116
Authorized Smartwool Dealer
28.4 mi
Info

The North Face

100 Detroit St
Denver, CO 80206
Authorized Smartwool Dealer
28.6 mi
Info

Nordstrom

2810 E First Avenue
Denver, CO 80206
Authorized Smartwool Dealer
28.6 mi
Info

The Walking Company - Cherry Creek Shopping Center

3000 E 1st Ave #153
Denver, CO 80206
Authorized Smartwool Dealer
28.7 mi
Info

Title Nine

160 Steele St
Denver, CO 80206
Authorized Smartwool Dealer
28.7 mi
Info

JAX Loveland Outdoor Gear, Ranch & Home

[full star] [full star] [full star] [full star] [full star] (1)
950 E Eisenhower Blvd
Loveland, CO 80537
Authorized Smartwool Dealer
29.0 mi
Open Info

Nordstrom

1505 S Colorado Boulevard
Denver, CO 80222
Authorized Smartwool Dealer
30.6 mi
Info

Dardano's Shoes

1550 S Colorado Blvd
Denver, CO 80222
Authorized Smartwool Dealer
30.7 mi
Info

Runners Roost

1685 S Colorado Blvd
Denver, CO 80222
Authorized Smartwool Dealer
30.7 mi
Info

Sportsman's Warehouse

1675 Rocky Mountain Avenue
Loveland, CO 80538
Authorized Smartwool Dealer
30.8 mi
Info

Sportsman's Warehouse

3910 River Point Parkway
Englewood, CO 80110
Authorized Smartwool Dealer
30.9 mi
Info

DICK'S Sporting Goods

8501 W Bowles Ave
Littleton, CO 80123
Authorized Smartwool Dealer
30.9 mi
Info

DICK'S Sporting Goods

8435 Park Meadows Center Dr
Littleton, CO 80124
Authorized Smartwool Dealer
30.9 mi
Info

Dillard's

8501 West Bowles Ave
Littleton, CO 80123
Authorized Smartwool Dealer
31.0 mi
Info

Kaufman's Big and Tall

3395 S Broadway
Englewood, CO 80113
Authorized Smartwool Dealer
31.0 mi
Info

Never Summer Mountain Products

919 Grand Ave
Grand Lake, CO 80447
Authorized Smartwool Dealer
31.0 mi
Closed Open today
at 9am
Info

Western Trading Co Inc /Army Surplus For Less

3524 S Broadway
Englewood, CO 80113
Authorized Smartwool Dealer
31.2 mi
Info

Murray's Shoes

[full star] [full star] [full star] [full star] [full star] (1)
8116 W Bowles Ave
Littleton, CO 80123
Authorized Smartwool Dealer
31.3 mi
Info

DICK'S Sporting Goods

5875 Sky Pond Dr
Loveland, CO 80537
Authorized Smartwool Dealer
31.6 mi
Info

Republic Shoes

2482 S Colorado Boulevard
Denver, CO 80222
Authorized Smartwool Dealer
31.6 mi
Info

Foot Savvy Shoes & Custom Orthotics

[full star] [full star] [full star] [full star] [full star] (1)
5910 S University Blvd
Greenwood Village, CO 80121
Authorized Smartwool Dealer
34.5 mi
Info

Outpost Sunsport - Ski & Patio

931 E Harmony Rd
Fort Collins, CO 80525
Authorized Smartwool Dealer
36.6 mi
Info

Murdoch's Ranch & Home Supply

12154 N Dumont Way
Littleton, CO 80125
Authorized Smartwool Dealer
36.8 mi
Info

Runners Roost

3500 S College Ave Suite 178
Fort Collins, CO 80525
Authorized Smartwool Dealer
37.4 mi
Info

Eskimo Ski & Board Shop

8265 South Holly Street
Centennial, CO 80122
Authorized Smartwool Dealer
38.0 mi
Info

Foot Solutions Aurora

5470 Parker E Trail
Aurora, CO 80015
Authorized Smartwool Dealer
38.7 mi
Info

Road Runner Sports

8457 S Yosemite St
Lone Tree, CO 80124
Authorized Smartwool Dealer
39.3 mi
Closed Open today
at 10am
Info

The Walking Company - Park Meadows

8505 S Park Meadows Center Dr #2041
Lone Tree, CO 80124
Authorized Smartwool Dealer
39.6 mi
Info

Dillard's

8415 Park Meadows Center Dr
Littleton, CO 80124
Authorized Smartwool Dealer
39.7 mi
Info

Nordstrom

8465 S Park Meadows Center Drive
Littleton, CO 80124
Authorized Smartwool Dealer
39.7 mi
Info

L.L. Bean

8525 Park Meadows Center Dr
Lone Tree, CO 80124
Authorized Smartwool Dealer
39.7 mi
Info

Runners Roost

6554 S Parker Rd
Aurora, CO 80016
Authorized Smartwool Dealer
40.2 mi
Info

Specialities

1 Old Town Square
Fort Collins, CO 80524
Authorized Smartwool Dealer
40.5 mi
Info

Runners Roost

9994 Commons St #230
Lone Tree, CO 80124
Authorized Smartwool Dealer
41.0 mi
Info

JAX Fort Collins Outdoor Gear

[full star] [full star] [full star] [full star] [full star] (1)
1200 N College Ave
Fort Collins, CO 80524
Authorized Smartwool Dealer
41.5 mi
Open Info

Cabela's

10670 Cabela Dr
Lone Tree, CO 80124
Authorized Smartwool Dealer
42.2 mi
Info

JAX Fort Collins Ranch & Home

1000 N Highway 287
Fort Collins, CO 80524
Authorized Smartwool Dealer
42.8 mi
Open Info

DICK'S Sporting Goods

7305 Market Pl Dr
Aurora, OH 44202
Authorized Smartwool Dealer
43.4 mi
Info

DICK'S Sporting Goods

1200 S Ironton St
Aurora, CO 80012
Authorized Smartwool Dealer
43.4 mi
Info

Murdoch's Ranch & Home Supply

9853 S Parker Rd
Parker, CO 80134
Authorized Smartwool Dealer
44.4 mi
Info

Vail Resorts

1254 Soda Ridge Road
Keystone, CO 80435
Authorized Smartwool Dealer
46.6 mi
Info

Wilderness Sports - Silverthorne

266 Summit Place
Silverthorne, CO 80498
Authorized Smartwool Dealer
48.2 mi
Info

Wilderness Sports

701 E Anemone Trail
Dillon, CO 80435
Authorized Smartwool Dealer
48.4 mi
Info

Murdoch's Ranch & Home Supply

1241 Blue River Pkwy
Silverthorne, CO 80498
Authorized Smartwool Dealer
48.7 mi
Info

Wild Ernest Sports

14 Fawn Court
Silverthorne, CO 80498
Authorized Smartwool Dealer
49.5 mi
Info

Rivers Clothing Company

503 Main St
Frisco, CO 80443
Authorized Smartwool Dealer
52.2 mi
Info

Product Information

These are the lightest Merino socks on the market. They feature the 4 Degree™ elite fit system, a virtually seamless toe, and patented technology to help make them outlast a year's worth of centuries.
54% Merino Wool, 42% Nylon, 4% Elastane

  • 4 Degree™, elite fit system uses two elastics for greater stretch and recovery to keep the sock in place
  • Patented ReliaWool™, technology in high impact areas increases durability
  • Strategically placed mesh ventilation zones
  • Virtually seamless toe
  • 1.5" overall height

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