The side spikes are a common shibori pattern (Japanese dyeing technique that involves folding, twisting or bunching cloth and binding it, then dyeing it in indigo).

• 450 GSM Pearl Weave 100% Cotton Jacket
• 12 oz 100% cotton drill pants
• COOLMAX® fabric lining inside the jacket (shoulders and waist) and pants (gusset)
• Ripstop lapel
• High definition embroideries
• Brushed cotton jacket (soft/comfortable)
• Slim fit
• reinforced knee pads
• EVA foam collar with the perfect balance, not too hard (uncomfortable), not to soft (better grips for the opponent)
• lightweight elastic drawstring on the pants

The fabric is pre-shrunk and will have minimal shrinkage if washed on cold water and line dried in the shade. You can adjust the overall size up to 4% by doing a controlled shrink. Wash it in warm water and dry it gradually from line dry, warm and hot in the machine settings, until it shrinks to your desired fit. This is a reference for height/weight ranges for a new/unwashed gi:

5'3"-5'5" |130-150| = A0
5’5″-5’8″ |150-170| = A1
5’8″-6’0″ |170-190| = A2
5’8″-6’0″ |190-210| = A2W
6’0″-6’3″ |190-220| = A3
6’2″-6’5″ |210-250| = A4