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Enter promo code 'thankful26' before NEWTRAL chair checkout, to redeem an extra $200 off.

Protective gear and functional socks: 5% off for 1; 8% off for 2

The Kwun Tong store has moved to a new address: Unit B, 3/F, Tegg Centre, 135 Wai Yip Street, Kwun Tong. Sign up for membership and receive a $50 shopping credit

Enter promo code 'thankful26' before NEWTRAL chair checkout, to redeem an extra $200 off.

Protective gear and functional socks: 5% off for 1; 8% off for 2

The Kwun Tong store has moved to a new address: Unit B, 3/F, Tegg Centre, 135 Wai Yip Street, Kwun Tong. Sign up for membership and receive a $50 shopping credit

Enter promo code 'thankful26' before NEWTRAL chair checkout, to redeem an extra $200 off.

OS1st QS4 Performance Quad Sleeve, Black

OS1st QS4 Performance Quad Sleeve, Black

OS1st QS4 Performance Quad Sleeve provides targeted compression designed to support the muscle group without restricting range of motion.
Lightweight and streamlined, it’s built to move with the leg—ideal for both training and recovery use.

Free delivery for net purchase over $300 (Within Hong Kong) on order

Free delivery for net purchase over $300 (Within Macau) on order

Special offers on select brands Orthosis and functional socks 2026 on selected categories

HK$290.00
HK$255.00
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Description
OS1st QS4 Performance Quad Sleeve QS4 (Single), Black


The OS1st® QS4 features an integrated IT band stabilization design, with a uniquely structured back panel that provides targeted compression to help support muscle stability and relieve thigh discomfort.
Powered by Compression Zone Technology®, the QS4 delivers effective, graduated support that’s safer and more comfortable than bulky splints or braces. Its lightweight, low-profile design fits easily under any clothing—perfect for your active lifestyle!

商品1
Compression Zone Technology®
Targets specific areas with the right amount of compression

 商品2
Base Layer Bracing
Thin, flexible, non binding construction
商品3
400 Needle Construction
Ultra thin and comfortable
 商品4
Circumference Sizing
For the perfect fit
商品5
Moisture Wicking
Keeps skin dry
 商品6
Silicone Grip
Stays in place
商品7
Comformance® Yarns
Keeps air flowing 
 商品8
Silver Ion Technology
Anti-stink & anti-microbial

Indication
Strain or weakness
Posterior thigh muscle strain or weakness
Thigh muscle fatigue

Features
Compression zones mapped to support the quadriceps during activity
Lightweight knit built for long training sessions or extended wear
Slim profile intended to layer under uniforms or performance apparel
Breathable construction to help manage heat and moisture
Secure fit engineered to stay in place during dynamic motion

Compression Zone Technology®,CZT®
Compression Zone Technology or "C-zone technology" is a patented, evolutionary approach to performance sleeves and socks uses top-of-the-line, precision knitting machines to seamlessly transition levels of compression from moderate to firm within a sleeve or sock to target specific conditions. 

OS1st QS4 is made using top-tier precision knitting machines that accurately divide the sleeves into 4 compression zones.
They provide varying levels of compression and stability to quadriceps, helping to relieve discomfort caused by overuse in daily life.

Textile engineering – We patented our technology after extensive research and medical testing on the affects of our targeted compression on Plantar Fasciitis and grew from there. 
Advanced equipment – Our products require precision knitting machines which happen to be the most technologically advanced machines in the world
Hydro-transfer system – We select the best Micro-Fiber yarns with moisture-management built-in so there's no chance for sweat to stay trapped in your compression product
Lycra® Energize fiber -  Our compression feels like a custom fit because we've woven in specialized fibers to keep it close-fitting and flexible
No bulk – The use of premium materials, targeted zones of compression and top-of-the-line machinery results in sleek, thin products that are still durable yet soft

Specification
Colour: Black
Size: M / L / XL
Material: 24% LYCRA® Spandex, 76% Micro-Nylon
Origin: US Brand, Made in Taiwan

Size
Measure the circumference of your thigh and refer to the size chart when selecting your size.
M 17.5-20 inch / 44.5-51 cm
L   20.5-23.5 inch / 52-60 cm
XL 24-27 inch / 60-68.5 cm


Usage Instructions
Please wear this product correctly, avoiding any creases, and follow the proper positioning as demonstrated on the packaging images.
For first-time use, it is recommended to wear for 1–2 hours (adjust according to personal condition); after confirming no discomfort, gradually increase the wearing duration. Each use should not exceed 8 hours.
For individuals with sensitive skin, if any allergy, eczema, pain, or other abnormal reactions occur, discontinue use and consult a doctor.
People with diabetes should consult a doctor before use.

Care Instructions
Wash gentle on cold
Tumble dry on low heat
No bleach or fabric softener

Shipping & Payment

Delivery Options

  • Hong Kong Local Courier
  • Pick Up At Store
  • 啟德SOGO Alohalife旗艦店自取 [到訪前請先確認庫存]
  • 銅鑼灣SOGO Alohalife自取 [到訪前請先確認庫存]
  • Courier in Macau
  • Shipping to Taiwan (⚠️ Shipping Fee NOT Included) (4-10 Working Days ⚠️Please read before purchase)
  • China, Taiwan, Malaysia, Singapore, Thailand and other Asian regions delivery (3-14 delivery days; with shipping and taxes payable upon delivery.)

Payment Options

  • Credit Card
  • Credit Card（Visa/ MasterCard/ AMEX）
  • Payme (Alohalifehk)
  • FPS
  • Bank Transfer / ATM
  • PayPal & Credit Card
  • Alipay (HK)
  • WeChat Pay
Customer Reviews
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