One layer off each upper layer
We took a single print layer out of the upper texture, upper structure, and upper foam, which is a real weight saving you notice without losing the structure.

Softer, thicker foam in the upper
We increased upper foam thickness and softened it, which is most of what you feel when the shoe first goes on and through the first hour of play.

More foam over the vamp
An extra base layer of vamp foam sits between the laces and the top of your foot, which is the spot most people report pressure first.

Reinforcement scaled to your weight
The 95A hex and eyelet thickness now changes with your body weight and sport, because a 130 pound winger and a 300 pound lineman are not the same load case.

A finer hex pattern in the upper
We reduced the hexagon size by 1mm in both width and height, which gives a more even stretch across the upper instead of a few large panels doing all the work.

Ten percent wider 95A reinforcement
The 95A reinforcement bands got 10 percent wider, spreading load across more of the upper so the high stress areas stop being the failure points.

Flex pyramids across the toe
We put 60A flex pyramids between the foam cutouts over the toes, so the toe box bends with your toes rather than creasing in one hard line.

363 recorded changes in this area in total.

A heel counter that actually holds
The heel counter is what keeps your heel seated instead of lifting. We tested a run of materials for it and a glass fiber reinforced polymer came out the strongest and stiffest, so that is what we print it in.

A heel cup sculpted, not glued
The foam heel cup is sculpted in 3D and printed as one piece, so there are no collar foams to glue in. It fits closer, and its flex joints follow the way your Achilles actually creases.

A wider heel pull tab
We widened the ends of the dual pull tab, which makes the shoe easier to pull on and stops the tab from digging into your fingers.

A deeper heel counter
We increased heel counter depth for better stability and comfort in extreme movement, which is where a shallow counter lets your heel float.

Achilles foam matched to your tendon
Where the Achilles foam starts is now set by the width of your own Achilles, rather than one fixed position that fits some tendons and irritates others.

Ankle foam moved where it helps
The ankle foam moved 2 to 3mm forward and gained 0.5mm of height, which is a small change that lands the padding where the ankle bone actually sits.

Heel vents for sweat drainage
We added vertical ventilation at the bottom heel edge, slanted downward, so sweat and water have somewhere to go instead of pooling in the heel.

A smoother heel counter corner
We smoothed the top corner of the heel counter and eased its transition, removing a hard edge that some people could feel through the collar.

A 5mm taller heel counter
Every model got 5mm more heel counter height, which is a meaningful gain in how locked down the rear foot feels during a hard change of direction.

Less pressure at the heel counter
We reduced the pressure the heel counter puts on the back of the heel, because rigidity is only useful up to the point where it starts bruising people.

165 recorded changes in this area in total.

More toe box height for American football
American Football players get an extra millimeter of toe box height, which accounts for how much the forefoot loads and splays inside a American football boot.

A smoother roof over the small toes
We fit an average plane across the four small toes and use it to smooth the top of the toe box, removing the bumps that used to sit over individual toes.

Five toe box widths, not one
We built five grades of toe box width, so the shape follows your actual forefoot rather than stretching one profile across every foot we scan.

Toe box height tuned to foot strength
Toe box height now comes down as foot strength goes up, because a strong foot wants a closer fit and a weaker one wants room to splay.

Less big toe width, more pinky width
We rebalanced the toe box with slightly less width at the big toe and slightly more at the pinky, which matches how most feet actually spread.

Toe box shaped from your own toe tips
The toe box curve is generated 6mm out from each of your scanned toe tips, so the front of the shoe follows your toe line instead of a stock shape.

A lower toe box for football
The football last lost a millimeter of toe box height, which brings the upper closer to the foot for a cleaner strike on the ball.

Less heel spring in the last
We dropped heel spring by 1.5mm, flattening the platform so your heel sits closer to the ground and the shoe stops rocking you forward.

147 recorded changes in this area in total.

A narrower tongue at base and top
We took 3mm off the tongue width at both the base and the top, which removes bunching under the laces without leaving the top of your foot exposed.

A lower, thinner collar edge
We moved the collar down 3 to 5mm from the edge and took a millimeter of thickness out, which is less bulk right where the shoe meets your ankle.

More room over the instep
We raised instep height at the front of the ankle by 1 to 2mm, which relieves the pressure people feel when they lace down tight.

Bigger vents in the tongue
Tongue vent holes went up 15 percent in size, which moves noticeably more air over the top of the foot on a hot day.

A 2mm taller collar
We raised the actual collar height 2mm, which improves how the shoe holds your ankle without pushing into the malleolus.

Collar foam extended forward
The collar foam now runs 5mm further forward, so the transition from ankle padding to the throat of the shoe is gradual rather than an edge.

Less collar padding for non football models
Baseball, cricket, and similar models lost some collar cushion, because those players wanted a lower, less padded ankle than football players do.

A vent grid that keeps turf pellets out
We changed the tongue vent holes to a cross grid, which keeps air moving through the tongue while stopping turf pellets from working their way in.

159 recorded changes in this area in total.

A notch where the tongue flexes
We added a notch at the eyelet and tongue junction so the tongue can fold naturally when you lace up, instead of buckling against a stiff corner.

Ballistic nylon behind every eyelet
Eyelets are where uppers tear out first, so we laser cut a ballistic nylon backing and bond it behind them. It takes the load off the printed material entirely.

Eyelets sized to your body weight
Eyelet reinforcement is now specified by athlete weight, with 1.5mm of thickness above 110 pounds, since lace tension scales with the person pulling on it.

Slightly larger eyelet openings
Eyelets grew 0.5mm in both length and width, which makes lacing easier and lets the lace sit flatter instead of biting on one edge.

Lace pressure spread across the eyelets
We printed an internal soft TPU eyelet system that distributes lace pressure along the upper instead of concentrating it at each individual hole.

Laces cut to your shoe
Lace length is now calculated from your eyelet spacing and shipped to match, so you are not trimming or double knotting a generic length.

Reinforced top two eyelets
The top two eyelets get extra soft TPU thickness for six layers total, because those are the ones taking the most tension when you lock the ankle down.

137 recorded changes in this area in total.

A smoother metpad pocket
We refined the bottom edge of the metpad pocket so the surface finish comes out clean, with no ridge left where the pocket meets the surrounding material.

A simple hinged lid on the spacer boxes
The toe spacer and metpad boxes got a simple hinged lid, so they open and close cleanly and actually stay useful after the first day.

Softer, better shaped toe spacers
The spacers were too stiff, so we added shape through the center and arched the top and bottom, which makes them far easier to wear all day.

A lower profile metpad
We took 2mm off the top end height of the metpad, which keeps the support under the metatarsals without crowding the top of the shoe.

Metpads that account for insole thickness
Metpad height now adjusts when the insole underneath it is thicker, so the total stack under your forefoot stays where we intended it.

A wider big toe spacer
We added 1 to 2mm to the front of the big toe spacer, which gives the big toe a more honest amount of room to move back toward neutral.

Spacers sized from your measured toe gaps
When toe gaps are measured on your scan, the toe spacer width is adjusted to match, so the spacing is yours rather than a small, medium, or large.

169 recorded changes in this area in total.

A ruler printed on the fit sock
We printed 5mm grid measurements onto the fit sock, so you can measure and describe fit issues precisely instead of guessing at millimeters.

Eyelets on the fit sock
The fit sock now carries the eyelet design, which lets you check lacing and instep pressure before we commit the real pair to print.

19 recorded changes in this area in total.

Back to the foam that works
We tested several foams for the shoe and came back to the one that gave the best combination of softness, print reliability, and how it holds up over time.

109 recorded changes in this area in total.

A quieter, simpler box latch
The box latch went from clicky to a single bump, which is less fussy to open and much less likely to break off over time.

A better hinge on the metpad box
The metpad box hinge works more smoothly and its printed text comes out cleaner. Small things, but the box is the first thing you handle when the parcel arrives.

Ribs that make the lid snap shut
We added ribs to the inside of the lid for a proper snap fit, which also keeps the lid stable while it prints so it arrives flat.

A clear PETG lid that slides off
The lid is printed in clear PETG and splits so one half slides into the other, which makes opening the box part of the experience rather than an obstacle.

Accessory boxes that stay put
We tightened the fit of the metpad and spacer boxes so they no longer slide out of the shoe box when you pick it up.

A printed shoe box made for your pair
The shoe box is generated from your own boot and upper geometry, so the box is shaped around your shoes rather than the other way around.

70 recorded changes in this area in total.

Stud type and stack height on the box
The box label lists stud shape, stack height, and insole type, which is the information you actually need when you order your next pair.

A box label with your build data
Every box now carries a label with the details of your specific pair, so you can see what was made for you rather than guessing later.

58 recorded changes in this area in total.