Men's Active Liner Shorts 2.0 - Rainbow Reflective V2 (Preorder)

$59.99 $85

Shipping calculated at checkout.

Please select the size option

This FLEXLIVING product is coming back and is scheduled to begin shipping out to customers at the end of April or first week of May just in time for spring and summer. These sold out super fast so make sure to place your Preorder and ensure you get yours!

For any questions please contact us at

Dichroic "squid ink" fabric inspired by 500+ million years of evolution.

The squids' skin is one of the most complex and unique biological materials on this planet. While most creatures with color-changing ability do it to hide, squids do it to attract. Which is where the inspiration for flexliving's reflective release came from.

Our rainbow reflective fabric is stealthy, until you don't want it to be. The fabric is a mellow gray/black, and then when the light hits it just right, it comes to life and looks like it's from another dimension.

Short Features:

  • Built in black Compression underwear
  • Zippered tech storage pockets
  • Embroidered Peach icon on left leg
  • Elasticated waistband with drawstrings (extra stretch for maximum comfort)
  • Reduced length — let's celebrate those quads!
  • Rainbow Reflective outer fabric (now with 4-way stretch)
  • With slightly wider waist to avoid "muffin top".


WAIST 26-29" 29-31" 31-33" 33-35" 35-38"


SIZING: Runs big. Order a size down if you're in-between sizes. With slightly wider waist to avoid "muffin top".

Wash / Care Instructions
Please wash it by hand, do not twist it too tight, and dry it naturally.

Preorder Notice: By preordering you are guaranteed to receive one before stock sells out again.

Preorder items cannot be combined with in stock items. This is to avoid mix up and delays. 

We offer free US standard shipping for all orders $125 and higher. Orders below $125 are charged anywhere between $6.95-$9.95 (flat shipping rate depending on weight) for domestic and between $19.95-$39.95 (flat shipping rate depending on weight) for international.

When available, expedited shipping can be selected during checkout + will be included in final purchase cost. International shipping does not include duties or taxes. Customers are responsible for any customs fees, duties, or taxes that may apply upon delivery.

We strive to ship all orders placed before 12:00PM (MST) the next business day, regardless of shipping speed selected, unless the order contains a pre-order item(s). If one or more of the items in your order is on pre-order, shipment will only begin once all items  are available. To know more Order Status, click here:

Important: Processing times do not include weekends or federal holidays.

We strongly encourage you to double-check your shipping address prior to placing your order. Keep in mind that we're not liable for incorrectly entered addresses. If you want to change your shipping address, kindly get in touch with us within 24 hours.

Once your order is placed, you will receive an order confirmation email from us. If your order process has begun, or your order has already been shipped, we won't be able to make any adjustments to your order. Expect a shipping confirmation email, which includes your  tracking info, once your order has been shipped.


We try to make processing returns and exchanges as easy as possible for our customers. If you're not completely satisfied with your purchase, you may return your merchandise within 30 days of placing your order. We want to make your shopping experience the best it can be. That’s why we’ve made a FREE return option for our US customers when selecting store credit!

To initiate a return or exchange, head to our Returns Center. Please make sure to use the return label we provided to send back your item. At this time, we don't accept any third-party return labels. Click here to learn more about our Returns & Refunds Policy.



What are we looking for?

Flexliving is looking for micro-influencers. We look for accounts with 1k or more followers, who post regularly (4 posts per month, or more) about industry-related content, with more than 25 posts on their feed. We are looking for people who embody our industry, whether that is fitness, outdoor or sports, etc.

We appreciate your support and desire to represent Flexliving!

Benefits of becoming an ambassador

GET PAID (20% commission)

DISCOUNTS ON PRODUCT AND APPAREL (50% OFF your next order once approved)


As an Ambassador you have the opportunity to earn paid commissions with Flexliving! You will earn a 20% commission when anyone uses your custom promo code (valued at 20% off) that can be set up after your welcome email. This code can be shared within and outside of your social and personal network.

When a sale is completed using your code or referral link, the system will assign the sale to you and the commission associated with it. This is all tracked within your Flexliving affiliate dashboard.

Additional instructions and training is available using our affiliate platform. This is where all promotions, training, contests and content is located.

We have a dedicated team to support you and the ambassador program. The team can be reached by emailing

Once an ambassador, you will be given other means to communicate as well.



Please make sure your Instagram or TikTok profile is set to public. Thank you!

  • All BRAND AMBASSADORS are asked to post twice a month on your Instagram feed or Facebook timeline.
  • All BRAND AMBASSADORS are asked to FOLLOW @flexlivingcollection and LIKE / Comment as soon as possible after each post is made.
  • BRAND AMBASSADORS are asked to wear, promote, and share Flexliving product as often as convenient.
  • BRAND AMBASSADORS are asked to interact, like, and comment within their own social media channels. Engagement is key.
  • All Brand AMBASSADORS are asked to repost our giveaways and contests.
  • All BRAND AMBASSADORS are asked to use as many of our frequently used social hashtags, and we ask you to encourage your network to do the same: #flexliving #flexlivingcollection #celebrateyourpeach
  • BRAND AMBASSADORS may be asked from time to time to help with local events and/or expos.
  • BRAND AMBASSADORS will contribute to feedback requested on new designs, products, giveaways.
  • All BRAND AMBASSADORS will not represent or promote other companies with competing products.



Men's Active Liner Shorts 2.0 - Rainbow Reflective V2 (Preorder)

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Customer Reviews

Based on 46 reviews
R (Santa Ana, US)
Your Usual Size: M
Size Purchased: M
Height: 5’10”
Weight: 200

Very cool design and concept. I usually wear a pants size 34 and I purchased the M, it fits well! I tried the L and it was too big. The sizes run true! I feel safer when I run at night and I can’t wait to take them with me to festivals!

John Hawkins (Franklin, US)
Your Usual Size: L
Size Purchased: L
Height: 6 ft.
Weight: 210
Great shorts

Love the great reactions I get from my family and friends.

Zak Tucker (Lambertville, US)
Your Usual Size: L
Size Purchased: L
Height: 6 foot 5 inches
Weight: 215

Great shorts wish they were a little lighter but idk if it’s possible to make the reflective with different lighter material

Dennis Decosta (Atlanta, US)
Your Usual Size: XL
Size Purchased: XXL
Height: 5’11
Weight: 205lbs
Love love love these shorts

Very impressed with the quality, but more impressed with the magic of the material!!!!

Dante Searcy (West Orange, US)
Your Usual Size: M
Size Purchased: M
Height: 5’ 8”
Weight: 180

Looks great. Feels better. Fits fantastic

TD (Denton, US)
Your Usual Size: L
Size Purchased: L
Height: 5’10
Weight: 185

The running shorts are big but the joggers fit great. Quality of everything is very impressive just wish the shorts fit better

Calvin Mende
Your Usual Size: M
Size Purchased: M
Height: 5’10”
Weight: 165

I loved these! They were surprisingly more durable and better quality than I anticipated!

Michael White (League City, US)
Your Usual Size: L
Size Purchased: M
Height: 6’2”
Weight: 185
“Glowing” review

These shorts are incredibly reflective and I feel much safer running early in the AM. Some customers speak of the weight of the shorts and that it doesn’t effect their runs…. I agree. I love the liner and the useful pockets.

Luis Zepeda (Indianapolis, US)
Your Usual Size: S
Size Purchased: S
Height: 5'4''
Weight: 175

These shorts are no joke...I saw the plethora of positive reviews and decided to give it a shot. Sure they run a bit pricey, but like most things, you definitely get what you pay for. These shorts are not only soooo comfortable, but make you stand out in a crowd (if you are anything like me, then you love to be the center of attention, and these are sure to draw eyes).

THE ONLY CAVEAT EMPTOR>>> these bad boys like to hold on to water spots and stains, and trust me, you WILL see them, especially when they reflect (careful in those CANNOT afford a splashback on these shorts because they are noticeable from a mile away). Now, these spots and the shorts overall clean really easily! I will generally use a damp cloth to wipe off dried water spots or mild stains and it comes right out. Additionally, these hold water like a sponge, so I would advise against swimming in them.
Otherwise, GET THEM (if you are on the fence). I loved this purchase, truly did. I tediously looked through the reviews to see if I would get them, so this review you are currently reading serves as a guide for those wondering. WONDER no further good sir or ma'am. Have a good day!

Gary R (College Station, US)
Your Usual Size: L
Size Purchased: L
Height: 5’10
Weight: 210
Very reflective!!

Great for low light running or biking. Heavy duty undershorts. But still comfortable.