PowerStep UltraStretch Night Sock | For Stretching the Calf & Soft Tissues of the Foot
PowerStep UltraStretch Night Sock | For Stretching the Calf & Soft Tissues of the Foot
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- Comfortably stretches the calf and soft tissues of the foot
- Ultra-soft, lightweight materials for added comfort when in use
- Adjustable strap provides a slight, gentle and effective stretch
- Speeds recovery from Plantar Fasciitis and overuse injuries
- A comfortable alternative to night splints
DESCRIPTION
The PowerStep® UltraStretch® Night Sock provides a gentle and effective stretch to keep the foot in a neutral position. The UltraStretch helps alleviate pain associated with common overuse injuries such as Plantar Fasciitis and Achilles Tendonitis when taking those first morning steps.
BENEFITS
The PowerStep UltraStretch Night Sock is a less bulky alternative to night splints, allowing you to comfortably stretch the calf muscles and soft tissues of the foot while at rest or during sleep. The adjustable dorsiflexion strap provides a gentle stretch to alleviate pain and soreness, while the non-stretch toe area ensures flexion originates at the ball of foot, providing optimal pain relief. The adjustable calf band prevents sock from slipping while in use. Fits right or left foot.
Ideal for: Plantar Fasciitis; Achilles Tendonitis; Heel & Arch Pain; Calf Muscle Cramps; Runner’s Cramps; Soreness from Overuse Injuries
SPECIFICATIONS
- Materials: Latex free
- Sock: Nylon/polyester/spandex woven knit sock, black
- Dorsiflexion Strap: Nylon/polyester adjustable strap, black
- Toe Portion: Non-stretch urethane film, black
- Sizing:
- Regular, fitting calves measuring up to 16" in circumference (measured at largest part of the calf)
- Large, fitting calves measuring from 16"-21" in circumference (measured at largest part of the calf)
- Packaging Contains: 1 sock
- Proper care: Secure all straps and wash the UltraStretch Night Sock by hand in cold water with gentle soap. Rinse thoroughly and air dry. Do not machine wash or dry. Ensure the UltraStretch Night Sock is fully dry before next use.
Move With Confidence Again
The PowerStep® Dynamic Ankle Support Sock (DASS) combines the stability of an ankle brace with the flexibility of a compression sock, helping you stay active, and get back to the activities you love without the bulk of traditional supports.
Why Choose DASS?
Engineered for Recovery, Built for Movement
Whether you’re recovering from a sprained ankle, dealing with chronic ankle instability, returning to sports, or looking for extra support during long days on your feet, the DASS is designed to help you move with confidence and stay active doing the things you love.
Its low-profile design fits comfortably inside most athletic and casual shoes, making it easy to wear during workouts, walking, work, travel, or daily activity.
Key Product Benefits›
Designed for movement, recovery, and everyday wear, the DASS delivers targeted compression and adjustable ankle stabilization to improve confidence and support long-term mobility.
- Combines compression and ankle bracing for enhanced stability and support
- Helps you move with greater confidence and stability
- Designed to help reduce the risk of ankle reinjury and support recovery
- Low-profile design fits comfortably inside most athletic and casual shoes
- Adjustable support straps allow for a customized level of stabilization
- Breathable, flexible construction designed for all-day comfort
- Provides graduated compression to support circulation and proprioception
- Designed with a snug, supportive fit for optimal stability
- Available in multiple sizes; customers between sizes or with wide feet may prefer sizing up
What It's Ideal for›
The Dynamic Ankle Support Sock is designed for active individuals looking for comfortable support during movement and recovery, including:
- Chronic ankle instability
- Sprained ankles and ligament injuries
- Post-surgery recovery*
- Achilles tendon support needs
- Returning to sports or exercise
- Pickleball, basketball, tennis, volleyball, soccer, and running
- Hiking, gym workouts, and long shifts on your feet
- Occupations that require extended standing or long shifts
- Hypermobility-related ankle instability
- Everyday walking and mobility support
*Once you've completed your medical professional's recommended treatment plan.
Important Fit & Sizing Guidance
Designed for a Snug, Supportive Fit
The Dynamic Ankle Support Sock is intentionally designed with firm compression to provide stabilizing support. Because of this, it may feel tighter than a traditional sock or sleeve during your first few wears.
If you are between sizes, have wide feet, a high instep, swelling, or prefer an easier on/off experience, we strongly recommend sizing up for the best fit.
Fit Tips›
Getting the most out of your Dynamic Ankle Support Sock starts with the right fit. Keep these tips in mind for the best comfort, support, and overall experience.
Helpful Fit Tips
- This is not a standard compression sock
- Designed to feel supportive and compressive
- Fit may feel snug initially by design
- Many customers find it becomes easier to put on after several wears
- Best worn directly against the skin (not over another sock)
What to Expect›
The secure, performance-focused fit helps provide targeted compression and ankle stabilization while allowing natural movement during activity and recovery.
When wearing the DASS, you can expect:
- A snug, supportive compression fit around the ankle and foot
- Targeted stabilization to help improve ankle stability during movement
- Enhanced proprioception for greater confidence with every step
- Flexible support that moves naturally without feeling restrictive
- A low-profile design that fits comfortably inside most footwear
Sizing Recommendations›
For the best fit, refer to the measurement and shoe size chart before purchasing.
If you are between sizes, have wide feet, a high instep, or experience ankle swelling, consider sizing up for easier application and improved comfort.
The DASS may feel snug during the first few wears, which is normal and expected as part of its supportive design.
Step 1
Measure around your foot by wrapping a flexible measuring tape under your heel and over the highest point of your instep (top of your foot).
Step 2
Match your foot circumference to the size chart below to find your recommended DASS size. Shoe sizes are included as a secondary reference only.
Size SM:
Circumference Measurement: 9.25" - 11"
Approximate Shoe Size: Women’s 5-7.5, Men’s 4-6.5
Size MD:
Circumference Measurement: 10.5" - 12.25"
Approximate Shoe Size: Women’s 8-10.5, Men’s 7-9.5
Size LG:
Circumference Measurement: 11.75" - 13.5"
Approximate Shoe Size: Women’s 11-13.5, Men’s 10-12.5
Size XL:
Circumference Measurement: 13" - 14.75"
Approximate Shoe Size: Women’s 14+, Men’s 13-14+
*For the most accurate fit, always select your size based on your circumference measurement.
How to Wear the DASS
Support Without the Bulk
Built for Recovery, Activity, & Everyday Wear
Traditional ankle braces can feel bulky, restrictive, and difficult to wear comfortably throughout the day. The DASS was designed differently.
Its lightweight, flexible construction helps stabilize the ankle while still allowing natural movement, making it easier to wear during activity, inside athletic shoes, or throughout long workdays.
Traditional Brace
- Bulky fit
- Restrictive movement
- Difficult to wear inside shoes
- Rigid feel
- Designed mainly for injury
PowerStep DASS
- Low-profile design
- Dynamic support
- Fits inside most footwear
- Comfortable compression
- Built for recovery, activity & daily wear
1. Compression Sock Base
Provides targeted compression & support
2. Low-Profile, Lightweight Design
Makes DASS a perfect fit for most shoes
3. Ankle Stability Straps
Lock in correct positioning to allow healthy movement
4. Ankle Support Cage
Provides support & ligament protection
Product Specifications
PACKAGE CONTENTS & CARE
Left and right sock sold separately.
Package Contents: 1 ankle brace support sock (left or right)
Proper Care: Fasten the hook end of each strap to the loop portion on the sock before washing. Machine wash cold on a gentle cycle with like colors. Air dry. DO NOT machine dry, bleach, iron, or dry clean.
MATERIALS
Sock:
Polyester, black
Cage:
TPU, gray
Strap:
Layered polyester, TPE, and TPU, black
Product Material:
Not made with natural rubber latex
Free Shipping
Free shipping when you spend $35 or more.
Hassle-Free Returns
If it's not the right fit, our straightforward return process makes exchanges and returns easy.
We're Here to Help
Our knowledgeable customer support team is available to answer questions about sizing, fit, and product selection.
Trusted for Over 30 Years
For more than three decades, PowerStep has been providing innovative products that support comfort, stability, and movement—helping people stay active every day.
DASS FAQs
Is the Dynamic Ankle Support Sock supposed to feel tight?›
Yes. The DASS is designed to provide targeted compression and ankle stabilization, so it will feel more supportive and snug than a standard sock or sleeve.
Should I size up?›
If you are between sizes, have wide feet, a high instep, or experience swelling, sizing up may provide a more comfortable fit while maintaining support.
Can I wear the DASS all day?›
Yes. The breathable, low-profile design is made for extended wear during work, walking, travel, exercise, and everyday activity.
Does the DASS fit inside most shoes?›
Yes. The slim design fits comfortably inside most athletic shoes, walking shoes, and casual footwear without the bulk of a traditional ankle brace.
How long does it last?›
With regular use, expect 6+ months of effective compression and support. Replace when wear is noticeable.