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Evolution Technologies

Evolution Technologies Sierra Air 4-Wheel Walker

Name: Evolution Technologies Sierra Air 4-Wheel Walker
Brand: Evolution Technologies
SKU: EVOWAR63
Price: 251.92 USD
Availability: InStock

$251.92 USD

Sale Sold out

Shipping calculated at checkout.

The Evolution Sierra Air features the same strong centre folding frame and 8" PU wheels with standard braking system. It's lightweight, yet stable for indoor and outdoor use.

Features

Padded seat cushion
Squeeze to brake, push down to lock
Collapsible Basket - foldable & removable
Lightweight 8" polyurethane rubber tires
Includes soft back strap pad

Specifications

Seat Height	21"
Handle Height Range	31" - 35"
Seat Width	18"
Width Between Handles	19.5"
Width Between Rear Wheels	20 3/4"
Overall Dimensions	25" W x 26"L
Product Weight	15 lbs
Weight Capacity	300 lbs

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Trusted worldwide

Frequently Asked Questions

Everything you need to know about our mobility products and collectibles

What types of mobility products do you carry?

We carry a wide range of mobility solutions including electric scooters, walkers, rollators, and golf cars. Whether you need daily mobility support or a fun way to get around the neighborhood, we have something built for your lifestyle.

Are your mobility scooters and walkers suitable for seniors?

Absolutely. Our scooters, walkers, and rollators are carefully selected with comfort, safety, and ease of use in mind — making them ideal for seniors and anyone looking for reliable mobility support.

Do you offer warranty on your products?

Yes, most of our products come with a manufacturer's warranty. Specific warranty details are listed on each product page. Contact us if you have questions about coverage for a particular item.

What fan collectibles do you carry?

Our fan collectibles range includes Iron Man helmets, hover helmets, football coolers, fold-out tables, and more. It's the perfect selection for sports fans, collectors, and anyone who loves to show up for their team.

How do I choose the right mobility aid for my needs?

It depends on your level of mobility, lifestyle, and how much support you need. Walkers and rollators are great for added stability on foot, while scooters are ideal for longer distances. Reach out to us and we'll help you find the perfect fit.

Do you ship nationwide?

Yes, we ship across the US. Shipping times and costs vary by product and location. Check the product page or contact us for specific shipping details on larger items like golf cars.

How can I contact BTK Mobility for support?

You can reach us through our website's contact page. We're happy to help with product questions, order updates, or anything else you need. We aim to respond within 1 business day.

Trusted by Collectors Worldwide

Trusted by thousands of happy customers

Margaret T.

5 days ago

My rollator from BTK Mobility changed my life. Sturdy, smooth, and easy to fold. I take it everywhere!

James R.

1 week ago

The golf car is incredible. Runs quietly, handles great, and my neighbors keep asking where I got it!

Sandra K.

2 weeks ago

Ordered a walker for my mom and it arrived fast, well-packaged, and she loves it. Highly recommend!

DeShawn L.

3 weeks ago

The Iron Man helmet is a showstopper. My whole crew was impressed at the tailgate. Pure quality.

Patricia M.

1 month ago

Finally found a scooter that fits my lifestyle. BTK Mobility had the best selection and great prices.

Carlos V.

6 weeks ago

Got the football cooler and table combo — perfect for game day. BTK Mobility is now my go-to for fan gear.

Linda H.

3 weeks ago

Customer service was amazing. They helped me pick the right rollator and it arrived ahead of schedule.

Frank B.

1 month ago

The hover helmet is even cooler in person. Great gift idea — my son absolutely loves it.

Yvonne S.

1 month ago

Reliable, affordable, and stylish. My mobility scooter from BTK has given me my independence back.

Tommy W.

6 weeks ago

Smooth shopping experience from start to finish. The golf car exceeded my expectations — worth every penny.

Brenda A.

2 months ago

BTK Mobility has everything in one place. Ordered a walker and an Iron Man helmet in the same cart!

Marcus J.

2 months ago

Fast shipping, great quality, and the products look exactly as described. Will definitely be ordering again.

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Evolution Technologies Sierra Air 4-Wheel Walker