FlexCell sliding knee sleeve
Protect yourself through the slide.
Thigh-to-calf compression. Slips on and stays in place. The FlexCell pad flexes with your knee and absorbs the impact when you go down.
Pair $28
Sliding Knee Sleeve with FlexCell Pad | Full-Leg Padded Compression for Baseball & Softball
What it actually does
The dirt stops where the sleeve starts.
That line on his shin is the entire product. The FlexCell pad takes the slide. The compression keeps it from rolling down halfway through.
Thigh to calf, so it is still covering you when you pop up and sprint back — not just while you are on the ground.
Pair $28Size chart — S to XXLMeasure thigh and calf before ordering
| Size | Total length | Upper circ. | Lower circ. | Height | Weight |
|---|---|---|---|---|---|
| S | 15.7 in40 cm | 11.4 in29 cm | 7.9 in20 cm | 4′11″–5′3″150–160 cm | 77–88 lb35–40 kg |
| M | 16.5 in42 cm | 12.6 in32 cm | 8.7 in22 cm | 5′3″–5′7″160–170 cm | 99–121 lb45–55 kg |
| L | 17.3 in44 cm | 14.2 in36 cm | 9.4 in24 cm | 5′5″–5′11″165–180 cm | 132–154 lb60–70 kg |
| XL | 18.1 in46 cm | 15.7 in40 cm | 10.2 in26 cm | 5′5″–5′11″165–180 cm | 165–187 lb75–85 kg |
| XXL | 18.9 in48 cm | 17.3 in44 cm | 11.0 in28 cm | 5′11″+180–220 cm | 198–243 lb90–110 kg |
Upper and lower circumference are the measurements that matter most — height and weight are a guide. Between sizes, go up. Sleeves are sold singly: two is $28, four is $55 and you can mix colors and sizes however you like.
Why it stays where you put it
Most knee pads ride up mid-slide or need a tug every other inning. This one runs the full leg, so the compression above and below the knee holds the pad in place through the dive and the sprint back to your feet.
| Formula Sports | Basic Knee Pads | |
|---|---|---|
FlexCell segmented pad that bends with the knee (not a flat foam slab) |
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Full-leg sleeve, thigh to calf |
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No straps or Velcro to readjust |
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Built for baseball, softball, basketball and volleyball |
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How does the pricing work?
Sleeves are sold singly at $17.99. Put two in the cart and it drops to $28 automatically, no code needed. Four is $55, and you can mix colors and sizes however you like - two black and two white, or four different sizes for the family. The discount applies in the cart.
How do I pick the right size?
Use the size chart above - measure the circumference of your thigh and calf, since that is what the sleeve has to grip. Height and weight are a starting point only, and between sizes you should go up. Mixing sizes is allowed on the 4-pack if you are buying for more than one player.
What makes this different from a basic knee pad?
The FlexCell pad is a grid of independent impact cells that flex with your knee instead of fighting it - it bends when you run and takes the hit when you slide, on dirt, turf or hardwood. The full-leg compression sleeve (thigh to calf) stays put through the dive, the slide, and the sprint back to your feet - no straps or Velcro to readjust between innings.
What sports is it built for?
Made for baseball and softball sliding protection, and it holds up just as well for basketball, volleyball, or any sport where diving on a hard surface is part of the game.
How fast does it ship?
Ships from the US. Most orders are out the door within 1-2 business days and at your door in 3-5. You get tracking by email as soon as it ships.
Why this exists
I kept sliding on the same scab.
I am Daniel. Baseball since I was seven, wrestling through college, and for the last ten years a men’s league game almost every Sunday with a softball tournament most months. That is a lot of sliding on hard, dry San Diego dirt, and every slide reopened last week’s scrapes before they had healed.
So I went looking, found a padded sliding sleeve that actually worked, and went straight to the manufacturer with one goal: get these on more players at a price that is not a joke.
— Daniel, Formula Sports
Pair $28