X
Mon-Sat 8am-5pm PT
FREE SHIPPING ON ORDERS OVER $50More info
JOIN OUR EMAIL LISTSign Up
Bike Tires Direct logo. Link to homepage.
Serving cyclists
since 2002
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.

Crumbs

Product Images

Assos Ultraz Winter FUGU Socks Black Series
Assos Ultraz Winter FUGU Socks Black Series
Black Series
Click Here for Larger Image
Assos Ultraz Winter FUGU Socks 1
Assos Ultraz Winter FUGU Socks 2

Assos Ultraz Winter FUGU Socks

(3)

Pricing and Order Section

Mfg PartNum:
$40.00 pr.
MSRP: $40.00
That's off
Out of Stock
Ships Free!
Earn $1.20 in VIP credit. Click to Learn More.
120
POINTS
This color/size is not eligible for VIP points
Price matches are is not eligible for VIP points
This product is not currently available.
 

Description

Ultra Warm Feet For the Coldest Rides

The Assos Ultraz Winter FUGU Socks are an all-new, ultra-insulated winter sock platform, engineered with a wool textile blend and reinforced with increased insulation in critical areas. Breathable, ultrasoft, and warm – total comfort for winter's harshest conditions.

The wool blend creates micropockets of warm air beneath the protective layer of your booties, with increased insulation across the toe and the front of the sock. The ultra-high 31cm (16in) cuff extends that protection to eliminate gaps between the FUGU and winter tights.

Features:

  • The breathable, thermoregulating wool blend textile combines high elasticity with proven insulation that stays warm, even when wet.
  • 160 needle construction eliminates seams and wraps in lightly compressive support, preventing slumping or restrictive pinching.
  • Increased insulation on critical areas and an extended cuff height add warmth for winter's harshest conditions.
  • 53% Polyamide, 43% Wool, 4% Elastane

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Size Chart

0III
Shoe Size
(Eur)
35-3839-4243-46000

Specifications

Fabric Type: Wool / Wool Blend 

Cuff Height: Crew 

Black Series - 0

Mfg PartNum: P13.60.768.18.0 

Black Series - I

Mfg PartNum: P13.60.768.18.I 

Black Series - II

Mfg PartNum: P13.60.768.18.II 

Reviews

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(3)
(0)
(0)
(0)
(0)
(100%)
(0%)
(0%)
(0%)
(0%)
Reviewed 5/5/2025
by twuerslin
Cycling Enthusiast
Waukesha, WI.
Value Rating
Overall Rating
Usual excellent Assos quality

Picked these up on a BTD Daily Special. Great quality for the price. Be forewarned about weird Assos sizing-be sure to read chart closely, but they are very warm without getting sweaty. They are VERY tall- which some may not like, but thinner at top so fit under tights with no issues.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/1/2025
by IA'R Rick
Chicago
Overall Rating
My new favorite warm cycling socks!

These high socks cover ankles and calves, allowing knickers instead of full tights on chilly rides. They stay up, similar to calf sleeves, and the feet stay warm in a very comfortable and soft knit.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 3/27/2025
by ajlacombe
Cycling Enthusiast
Cincinnati, Ohio
Value Rating
Overall Rating
Winners

These are great socks - there are so many Assos 3/3 socks and they are all different - they really could use a table that shows the differences The main differences revolve around length and thickness of the foot area. This sock has a thicker foot area and goes a good way up your calf - the material on your calf is thinner material and does stay up. This is a very nice sock. The foot area is not super thick to where it would cause issues - it is a good thickness that provides a good bit of warmth

Was this review useful to you? Yes/No
Thank you for your feedback.
additional content loading
additional content loading
additional content loading

We are committed to delivering outstanding value and service to our customers, every day.
Try us today to see why so many of our customers come back again and again.

*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Fri). Orders over $50
are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 70

5741 NE 87th Ave (I-205 exit 23B) Portland, OR 97220 | 800-682-0570 | [email protected]